4th Floor, Building 10, National Economics University, Giai Phong Road, Hanoi, Vietnam - Tel: 84-4-8693211, Fax: 84-4-8693369        Tuesday, January 6, 2009 
 Welcome to MDE
 Overview
 Curriculum
 Facilities
 Organization
 Students
 Applications
 Fees, Loans, Scholarships
 Theses
 Seminars
 Services
 International Cooperation
 MDE News
 Alumni
 
Tiếng Việt | English
Keyword:

Advance search
Goto:
 
introduction

introduction

1. Relevance of the study

       The balance of payments is one of the most important indicators for policy makers in open economies, especially in countries where the stabilization program is emphasized. What happens to a country's balance of payments becomes the focus of attention.

       In the balance of payment, current account (CA) is an important item, because  "the current account is what policy makers often refer to as "intermediate target"; that is, a variable which is both a broad reflection of the stance of macroeconomic policies and a source of information about the behavior of economic agents" (Knight and Scacciavillani,1998, p.4). Movement in the CA reflects all the actions and expectations of market participants in an economy. There are two reasons for that. Firstly, since CA reflects transactions between residents and nonresidents of an economy on goods and services. Secondly, CA determines the evolution over time of a country's stock of net claims on (or liabilities to) the rest of the world. It reflects the savings and investments of domestic and foreign residents. Therefore, the CA is an important macroeconomic variable and we need to explain its movements, assess its sustainability, determine policies to adjust it .

        The CA deficit or surplus mirrors the saving and investment behavior of the domestic economy. Any change in country's CA position (e.g. a larger surplus or smaller deficit) must necessarily be matched by increases in domestic savings relative to investment or be financed by either liquidating foreign assets or increasing liabilities to nonresidents. However, the current account deficit can not be financed indefinitely by increasing foreign borrowing since doing so leads to growing interest and amortization outflows making debt[1] unsustainable.

       In the past decades, many Asian countries have relied on foreign savings to accelerate economic growth (Wong and Carranza, 1998, p.16). In addition to substantial benefits, large capital inflows confront recipient countries with new challenges that require careful management to ensure those benefits are realized. Recent experience of Asian and Latin American countries clearly shows that persistent large current account deficit may bring about sudden reversals in capital flows and has spurred renewed interest in question of CA deficit sustainability.

       Since 1989, Vietnam has transformed from an economy dominated by central planning to an economy increasingly guided by market principles with high economic growth fueled by foreign savings. High economic growth has been fueled by foreign savings, so Vietnam witnesses persistent CA deficit.

       The large current account deficit reached a peak at 10.4 percent of GDP in 1996 and it was considered as alarming level. Since late of this year, government introduced import controls to narrow it. However, narrowing the CA deficit by import restrictions contributed to the slow-down in economic growth. The matter here is the sustainability of CA deficit but not its level because one country can run large CA deficit financed by foreign savings while still has capacity to reimburse the debt in the future.

       The World Bank (1997) recently concerns about Vietnam's CA deficit unsustainability and structure of its less healthy financing. Whether the large deficit CA threatens the country's external position is a central policy concern of the Vietnamese Government. Therefore, close examination of Vietnam's CA deficit and the factors underlying its long term development is necessary, especially in light of the recent regional Asian crisis and its repercussions in markets throughout the world.

 

2. Objectives and Focus of the thesis

       There are few studies discussing the current account deficit sustainability so far. Fry (1997) stated that Vietnam's double-digit CA deficit is sustainable in the foreseeable future because it is financed almost entirely by foreign direct investment. This conclusion needs more consideration because foreign investment involves substantial loans at commercial terms (the State Bank of Vietnam). Shishido (in IMF 1996) analyzed the structure of CA deficit financing and some macroeconomic indicators. He concluded that the CA deficit of Vietnam was sustainable. This conclusion also needs more consideration because since 1994 commercial loans have changed the size and pattern of Vietnam’s CA deficit financing, especially in late 1997 and 1998, when FDI disbursements have gone down due to the Asian crisis. Nguyen Thi Thanh Huong (1996) studied Vietnam's external debt and CA deficit sustainability using Jaime De Pine's dynamic debt model for the period of 1989-1994.  Huong reported a downward trend in the debt-to-export ratio  that implied Vietnam's external debt and CA deficit was sustainable. It also needs more consideration because variables used in Jaime de Pine's model  like export and import growth rate, debt-to-export ratio and interest rate have changed, especially when Vietnam has been impacted by Asian Crisis.

       This thesis attempts to assess the CA deficit sustainability of Vietnam in the 1989-1998 period that is still a central concern of Vietnam government. To obtain this objective, the thesis analyses the evolution of CA deficit and analyses comprehensively the capital account to find potential risks of running persistent large CA deficit, then assesses its sustainability in relation with debt sustainability. All these analyses focus on answering four research questions for the case of Vietnam:

 

       Q1. What are the characteristics of the CA deficit?

       Q2. In what ways has  the CA deficit  been  financed?

       Q3. Has the CA deficit  been sustainable?

       Q4. What policies are advisable  to  manage CA deficit  sustainability?

       Typically, the thesis specifies the maximum amount of imports called as warranted imports that ensures CA sustainability during 1989-1998. Moreover, the thesis introduces some scenarios of the CA deficit sustainability up to the year 2005 based on projections by the WB and the IMF to find warranted imports in each year.

 

3. Research Methodology of thesis

       In view of the fairly short experience in economic renovation, economic time-series for Vietnam is not meaningful. That is why I do not intend to utilize econometric for my thesis, but instead employ descriptive and comparative methods. For assessing the current account deficit sustainability, the Jaime De pine's dynamic debt model is used for  quantitative analysis.

 

4. The structure of the thesis

       The thesis will be divided into four chapters, plus an introduction and conclusion. The first chapter is a literature review. The second chapter surveys Vietnam's economic development and then examines the evolution of the CA deficit before  and after 1989. Chapter 3 will investigate the current account deficit as the savings and investment gap. The patterns of the CA deficit financing are discussed to find out whether Vietnam faces the risks when running the large and persistent CA deficit. Chapter 4 analyzes the current account deficit and debt sustainability. In this chapter, Jaime De Pine's dynamic debt model is used to analyze debt sustainability during 1989-1998. Then future scenarios for the current account and debt sustainability of Vietnam over 1999-2005 are examined.

 

chapter 1

theoretical framework

 

 I. Definitions and concepts

       Some economists have argued that different definitions imply at different theories of the current account. There are four different ways to describe or to understand it. as follows:

       Firstly, the current account measures the economy's trade in goods and services with the rest of the world taking into account all unilateral transfers including private remittances and government transfers. Secondly, the current account may be conceived as income minus absorption. Thirdly, the current account  may be described as national savings net of investment. Fouthly,  the current account is seen as  the change in net foreign assets with respect to the rest of the world. The debate among the various schools of thought has been generally fruitless, as all conceptualizations of the current account are equally true and are linked together by accounting  identities. The choice of concept depends upon the purpose of the analysis being undertaken.

       At present, Vietnam has no legal document defining the CA and the balance of payments. However, Vietnam has been measuring the balance of payments according the fourth  edition of the IMF Balance of Payments Manual (1993). In terms of transactions accounting, the CA of Vietnam consists of the balance on goods and services, net factor income from abroad and net transfers from abroad.

       In this chapter, theories about the role of foreign savings in financing CA deficit (section II), determinants of CA (section III), balance of payments adjustments (section IV) and CA deficit sustainability (section V) are discussed. Following is the different approaches to assess CA deficit sustainability and model used in the thesis.

 

V. Sustainability of  the Current account deficit and Jaime De Pine's dynamic debt model

      

       The first approach relies on solvency condition. For an economy to be solvent, the ratio of debt-to-GDP or export can not grow without bound. It gives suggestion that an indebted country must keep ratio of debt-to-GDP constant to ensure its solvency. In this context, sustainability of CA deficit is insured if debt is sustainable. However, defining the sustainablity of  CA deficit by measuring debt-to-export or GDP ratio have some shortcomings. Firstly, although it provides a long-run condition for stability of the ratio of external debt-to-GDP, it does not define whether that ratio appropriate or "optimal". Secondly, one country with low level of debt wants to accelerate high economic growth should not aim at keeping debt-to-GDP or debt-to-export constant. It is not necessary that a country with high debt-to-export or  high debt-to-GDP make its debt unsustainable. Because many countries have high debt-to-GDP ratio but they can pay back while some countries have low debt-to-GDP ratio can not  reimburse. Thirdly, solvency in this context does not take unwillingness to lend on current terms in to account.

       Some economists argue that external crisis can occur because stock imbalance and capital market factors like interest rate. These shortcomings call for a more comprehensive set of capital account and financial indicators, in addition to the CA. By this way, the sustainabilty of CA deficit is assessed not only by solvency condition but also by external crisis riks involed in capital account.

       The second approach relies on a set of macroeconomic, financial, and external indicators that involve the risk of external crisis. Proposed indicators are economic growth, rate of investment, export performance, openness to trade that closely to the ability of a country to generate future trade surplus to repay foreign debt. Moreover, indicators such as rate of growth in private credit, health of the banking system (such as level of non-performing loans, quality of supervision), terms of trade volatility, ratio of M2 to reserves, exchange rate...are included.     

       The difficulty faced by this approach is how to "rank" these indicators and how to translate them to into an overall measure of CA deficit sustainability.   

        It is relevant for me to analyze solvency condition and more comprehensives of the capital account to find risks of running CA deficit to examine the CA deficit sustainability of Vietnam. There are some reasons for that. Firstly, although the CA deficit has been financed mainly by  FDI but FDI in Vietnam involves a substantial amount of FDI-related loans. In fact, these loans are borrowings from foreign countries at commercial term (the State Bank of Vietnam). Indeed, the CA deficit has been financed  mostly by external borrowings. Secondly, it is difficulty to "rank"  indicators in second approach and to translate them to into an overall measure of CA deficit sustainability.      

       To assess Vietnam's solvency condition quatitatively, Jaime De Pine's Dynamic Debt Model is used. Following is Jaime De Pine's Model.

Jaime de pine's dynamic debt model

       Based on BOP identity, Jaime De Pine found the formula to calculate dynamic debt-to-export ratio as follows:

               (12)

       According to equation (12), the debt-to-export ratio (dt) is determined by two parameters: the interest rate to exports ratio (a) and the growth rate of import to export  growth rate (b). Two initial predetermined variables: initial debt-to-export ratio (do) and initial import to export ratio or non-interest CA (vo). The parameter (a) and (b) determines future evolution of debt-to-export ratio. Jaime De Pine stated that if the debt-to-export ratio are on upward trend, both debt and CA deficit are unsustainable. Conversely, if debt-to-export ratios are on a downward trend, the debt and CA deficit are sustainable and the debt country solvent.

       Typically, the Model emphasizes “excess import restraint” that is synonymous with overadjustment. In this sense, the excess import restraint is different between actual and warranted  imports. Warranted imports are the maximum amount of imports that make the debt-to-export ratio decline. The concept of overadjustment can be used to ask how much imports can grow while keeping the debtor solvent as well as its CA sustainability. It measures the amount of extra credit or extra the CA deficit  to finance  imports that a debtor country could borrow and pay.

 

 

 

       Chapter 2

the Evolution of the Current account deficit

in Vietnam, 1989-1998

I. the Economic background

       Vietnam has transited from a central planned economy to a market-oriented one in the time that involved many changes in external environment. Both economic reforms and changes in external economic environment have influenced substantially on trade as well as external position of Vietnam. Highlighted achievements Vietnam enjoyed in the past decades are high economic growth, moving from rice importer to  the world's second largest exporter of rice...However, there are still some outstanding issues need to be concerned. Among them, large CA deficit is center of policy concern in macroeconomic management. Before assessing the CA deficit sustainability, it is necessary to review briefly its evolution before 1989.

 

II. the Current account and the external debt before 1989

       Before 1989, domestic production only meets 80 to 90 percent of internal consumption, so Vietnam had to rely fully on foreign savings to meet investment requirements.  At that time, transactions on goods and services were mainly with CMEA, so financing sources for CA deficit was borrowings mostly from non-convertible area. External borrowings had played an important role in financing the CA deficit until 1988 because at that time FDI was discouraged. Since 1988,  structure of the CA financing has changed with the emergence of FDI. However, for the whole period of 1985-1989,  both FDI and  the external borrowings have not been sufficient to finance the CA deficit, the large source was come from arrears accumulation.

      

Iii the Current account deficit in the 1989-1998 period

       Vietnam's external transactions have undergone dramatically since economic reform. The CA deficit has reduced rapidly between 1989 and 1992 because traditional sources of financing from the former Soviet Union dried up when new one has not been found. Since 1993, Vietnam has found financing sources from countries other than CMEA group to finance the CA deficit. From that year, the CA deficit has widened year by year until  1996. In 1997-1998, it was narrowed due to import restrictions and Asian crisis's impacts on Vietnam economy.

       Compared with other Asian countries, Vietnam has run much larger CA deficit in term of GDP. While the indicator of the CA deficit as percent of GDP is always used in cross-country comparisons, it hidden quite a bit some important information about characteristics of CA. Is the explanation for the deficit found in a trade  deficit or in high interest payment on foreign debt? and does a given CA deficit result from high investment level or low savings? The answers for these two questions vary substantially across countries. The following  part is investigation of the evolution of trade balance, service, net factor income as well as transfers from abroad in Vietnam during 1989-1998.

 

1. The trade balance

       Trade balance changed by  each period. In 1989-1992,  the trade deficit  was very modest, about USD 50 million per year. Since 1993, trade deficit has been deteriorated until 1996 with imports increasing more rapidly than exports and reached at alarming level (13.7 percent of GDP). However, the deficit was lower in 1997 because from late 1996, Government took a number of import restrictions to dampen the pace of import growth, then counter the trade and CA deficit. The argument here is that when Vietnam is member of AFTA (and eventually WTO), significant trade liberalization is committed, therefore, using import restrictions seem to be not relevant in the coming years.

 

1.1. Composition of Trade:

1.1.1.Export composition :

       Vietnam's merchandise exports have been dominated by agricultural, natural resources and industrial products confirming the background of Vietnam economy. Two traditional items that occupied largest share in total export are crude oil and rice. Since 1994, there was a significant shift in the export composition of Vietnam. Exports of  textile and cloth have emerged and increased rapidly so they cached up with rice. From 1995, textiles have become second largest commodity after crude oil with revenue of more than  USD 1 billion. Besides above major exports, other goods such as rubber, coffee, cashew nut... have increased substantially and some items have played an important role in the world market.

 

1.1.2. Imports composition

       A large part of import's payments spends on capital goods like machinery, equipment, auxiliaries, material and fuel. These goods accounted for 80-90 percent of total imports while consumer goods occupied only 10-17 percent. However, the value of consumer goods may be under recorded because smuggle goods are existing in Vietnam. An unofficial data  estimates that the value of smuggled goods through the borders with China, Cambodia and Lao  was 15 percent of total import value. This is not surprise because many kinds of consumer goods from these countries came to domestic market like garments, shoes...and they crowded out the domestic goods.

 

1.2. Direction of trade

       The most significant change in Vietnam's trade partners since 1989 was a decline in the importance of Former Soviet Union as a traditional trade partners and raise in the share of Asian as well as other countries in total trade value. Trade with  Asian countries has increased from over 60 percent during 1991-1994 to nearly 80 percent of total trade during 1995-1998.

 

2. Non-factor services

       The revenue from non-factor services are mainly related to tourism, post, transportation, insurance...During 1990-1995, this item had little surplus but since 1995, due to rapid increase in imported goods, the payments for freight, insurance has increased substantially. In term of shares in total export of goods and services, non-factor services accounted for 18 percent in 1992, went to 27 percent in 1996 and stayed at over 20 percent in 1997-1998.

 

3. Net factor income from abroad.

       Investment income has mainly come from interest on deposits of Vietnamese residents with non resident banks. However, this value is very small because foreign assets of Vietnam are not much. In contrary, payment of this item has increased steadily in recent years  as a result of rising scheduled interest payments on external debt. Due to huge amount of external debt, Vietnam has to pay interest on this debt about some hundred USD per year. In addition, profit remittance has increased in the past years when FDI projects have been implemented after some years. Both increases in interest payments and profit remittance had made net factor income item negative.

 

4. Transfers

       The size of the CA deficit has been reduced by high positive net transfer. From small surplus at USD 90 millions in 1991, this item jumped to USD 1,200 millions in 1996 and USD 885 millions and USD 1,122 millions in 1997, 1998 respectively and contributed significantly to financing resources of the trade deficit.

       The overall picture of the CA in term of sub-items during 1989-1998 has been mentioned above. It can be said that trend of the CA and the trade balance are the same but the CA deficit has not closed to trade deficit because substantial changes in non-factor services and net factor income from abroad as well as transfers. Generally, except nearly balance in 1991-1992, the CA has been deficit persistently. As mentioned in chapter 1, running the high CA deficit is not necessary a bad thing. But how to manage it to ensure of sustainability. In analyzing the balance of payments and in particularly, the sustainability of any specific CA deficit situation, it is important to consider the capital flows that are emphasized in new thinking about CA. Following part is investigation the CA as savings gap and discuss on the pattern of the CA deficit financing, 1989-1998.

 

 

 

Chapter 3

 The pattern of the current account

deficit financing in Vietnam, 1989-1998

 

I. The Current account deficit as savings and  investment gap

       Among the most pressing issues facing Asian countries is the large gap between savings and investment or the large CA deficit. However, the same size of large CA deficit expresses different behavior of savings and investment among countries. What information hides behind the large persistent CA deficit in Vietnam during this decade? Low savings or high investment?

 

1. Recent development in savings and investment

       While Vietnam's savings are low, it still has reached high economic growth in the past years. Robust output and export growth has been supported by investment that has increased significantly since 1990. In 1998, investment dropped sharply because FDI that contributed to increase domestic investment decreased due to the Asian Crisis.

       The level of savings was very low compared with high investment, so the CA deficit has been widened, especially it reached a peak of 11.8 percent of GDP in 1996. It is similar between Vietnam and other Asian countries that the current account deficit is large but  savings and investment of these countries are much higher than those of Vietnam. So in term of savings and investment Vietnam is in situation that involves more risk than above countries. If savings have not been fostered to meet the high investment requirements, running large current account deficit may create burden of debt and then threaten the economy in the future. Therefore, finding  ways to change savings and investment behavior should be focused. But what sector's savings and investment gap should be center of policies?

 

2. Savings and investment by government and non-government sector

       Savings and investment gap of a national economy aggregate those of different sectors in economy (government and non-government or private sector). In Vietnam, both sectors bring savings gap but private sector's savings gap is larger than that of government sector. To ensure CA deficit sustainability over the medium term, promoting private savings is required, particularly financial sector should be developed, to improve the CA deficit or narrow the savings and investment gap.

 

 

 

 

 

II- the Pattern of the Current account deficit financing in Vietnam, 1989-1998

       Large savings and investment gap or large CA deficit reflects the net capital inflows. According to balance of payments accounting, net capital inflows are recorded in capital account that is counterpart of deterioration of the CA deficit.

       When Vietnam started to open its economy, savings gap required a surplus in the capital account. However, due to the huge amount of capital inflows in terms of FDI and external debt, the profit remittance and interest payments that have increased over recent years. These outflows will increase in the coming years. As a result, capital account  causes the deterioration of the CA in the future. Therefore, to manage CA, the macroeconomics policy should deal directly with capital inflows.

 

1. Level  of capital inflows

       The net capital inflows into Vietnam have increased very sharply since 1992 and reached a peak in 1996. It is not surprised to the case of Vietnam because capital tends to flow to region where potential investment return is high (typically to high growth countries) and/or where the market mechanism has to begin to take roots (Wong and Carraza, 1998). Nevertheless, large capital inflows involve risk of external shocks. It is true for the case of Vietnam. In 1997-1998, due to Asian crisis, FDI disbursements and commercial borrowings decreased that  induced lower economic growth.

       Since early of this decade, Vietnam enjoys accessing to various types of foreign capital inflows to finance the CA deficit (see Table 3.4). Table 3.4 shows that averagely FDI (net) accounts for nearly 80 percent of  capital requirements for financing the CA deficit during 1989-1998. Share of FDI in total CA financing source is much higher than that in other ASEAN countries. Averagely medium and long-term loan (net) and negative short-term loan (net) bring no surplus because Vietnam has to pay not only principal on old debt but also new debt.

 

       Table 3.4: The Pattern of Capital Flows, 1989-1998

       ( in million of USD and percent)

 

Average

89-99

CA deficit

-1,062

FDI (Net)

842

Medium and long term loan (net)

-  3

Short-term loan (net)

-77

                      Source: Data are taken from Appendix VI and author's calculation

 

       In some years, disbursements of medium and long-term loan are not enough to pay scheduled amortization. Although  net on borrowings do not bring much surplus to finance CA deficit. This does not explain the declining role of external borrowings in financing CA deficit because disbursements of loans during this period have been increasingly and Vietnam accumulates external debt continously.

       Besides thes sources, other sources such as use of Fund credit, arrears accumulation, debt relief have been used to finance the CA deficit during 1989-1998. Total financing sources are not only enough to cover the CA deficit but also bring in an increase in international reserve,  about some hundred millions of  USD per year. This creates pressures on the monetary policies management as well as exchange rate and choosing an optimal level of capital inflows should be considered. Moreover, financing CA deficit by arrears accumulation will erode the creditwothness of Vietnam in international market.

       The level of capital inflows only mentions the size of capital inflows comes into Vietnam. The more important thing is that the same size of capital inflows may have different cost and involve different risk depending on the  composition of capital inflows (combination of FDI, external borrowings). Following is the composition of capital inflows of Vietnam in 1989-1998.

      

2. Composition of capital inflows

2.1. Foreign direct investments

       Looking at the size of FDI in total capital inflows, it can be said that composition of capital inflows of Vietnam in 1989-1998 is very advantageous because FDI accounted for largest part. However, it is early to give confirm statement like that. For the precise evaluation, it is necessary to see cost of FDI, and its linkages with CA.

 

2.1.1.Components of FDI and its link with external debt.

       According to The Foreign Investment Law, total investment of one project includes at least 30 percent of authorized capital that is contributed by both sides. Vietnamese side usually contributes in form of land use. In fact, most of licensed projects have minimum authorized capital. The rest is borrowings (may borrow from omestic  and foreign creditors).       

       However, seeking capital in domestic market is not easy because Vietnam is still in shortage of capital situation. Almost joint ventures have to find sources from their parent companies and other foreign creditors. As a result, FDI inflows in Vietnam have recently involved a substantial loan (see figure 3.3) with high interest rate compared with ODA interest rate. Therefore, FDI may allow investors to repatriate earnings even low profitability of joint ventures. In such situation, advantages of FDI may be eroded in the case of  Vietnam.

 

                      Source: Data are taken from Appendix VI

 

2.1.2. Foreign direct investment  and its link  with the current account.

       Since 1989, FDI inflows have increased substantially that create a surplus in the capital account. In some following  years, it put negative impacts on the CA. There are some seasons for that. With low share in total exports and higher share in total  imports, trade balance created by FDI sector accounted for around 30 percent of total trade deficit of the economy. After some years implemented in Vietnam, some projects have remitted their profit to their home countries. These remittances have increased recently and accounted for more than nearly a half of factor payment to abroad in 1998. Moreover, payments of technical fees, copyright, payment royalties and interest payments of FDI sector also increased.

       In short,  FDI has put negative impacts on the CA during 1989-1998 and also leads to increase of external borrowings.

 

2.2. External debt

       In the past years, loan from foreign countries has played an important role in financing the CA deficit together with FDI. In the context of financing the CA deficit, external borrowings are expressed in term of flow figure. However,  loan coming in Vietnam year by year will accumulate debt. The same stock of debt  will cost differently and involve different risk depending on composition of debt by maturity, type of loan, currency domination and at different interest rate. Therefore, the following are discussion on these.

 

 

2.2.1 Debt by maturity

       Although new loan from CMEA group has no longer been committed, Vietnam still has huge amount of outstanding debt in Transferable Rubles. This characteristic made difficulty in measuring the debt burden because there were no official exchange rate between Transferable Rubles and USD to convert these debt.

       Long term debt accounted for largest part (about 80-90 percent) while short-term debt  and use of Fund credit occupied 10-20 percent during 1990-1997. Among other countries in the region, Vietnam's short-term loan is the lowest and involves huge amount of L/C with deferred payments. Low share of short-term debt implied that the CA deficit has been financed by almost medium and long-term loan. Knight and Scacciavillani (1998) stated that the sustainable CA is one that can be financed by long-term capital flows. From this point of view, with small share of short-term debt, Vietnam seems not to be threatened by the CA unsustainability in the past years.

       However, risk of composition debt by maturity does not ensure sustainability, degree of risk sharing with debt contracts also depends on the currency denomination,  interest rates, type of loans.

 

2.2.2. Debt by currency denomination

       Debt denominated in Transferable Rubles accounts for large part of total debt of Vietnam despise it has downward trend along with increase in debt dominated in other currencies. If the Transferable Rubbles debt is excluded,  medium and long-term loan dominated in USD accounts for almost of Vietnam's external debt. USD is the foreign currency that Vietnam Dong is linked. Therefore, exchange rate risk will impact on external debt of Vietnam. One point can be drawn is that when choosing devaluation to adjust CA deficit it is necessary to consider the impacts of devaluation on burden of debt, especially the debt services during the time devaluation was made and then compare with benefit resulted from trade balance improvement.

 

2.2.3. Debt by type of loan (concessional and non-concessional loan)

        Concessional loan over total debt is very high, around 70-80 percent during 1994-1997. However, its share tends to decrease since 1994 when commercial loans have  increased. If Transferable Rubbles debt is excluded from total debt, share of non-concessional debt has increased rapidly. Cost of external borrowings to finance the CA deficit of Vietnam become more expensive recently. Moreover, when non-concessional loan increase, it involves more interest rate  risk. Therefore, Vietnam's external debt becomes more dependent on uncertainties in international financial market. Considering interest rate become more important for external debt management of Vietnam in the future.  It is one of important indicators will be taken into account  in  Jaime De Pine's dynamic debt model  discussed in Chapter 4.

       Managing the composition of external debt is necessary to insure debt and CA deficit sustainability. However, to ensure high economic growth as well as high export growth rate fueled by foreign savings, one thing should be focused on is the efficiency of capital utilization. The reason is that an increase in investment does not automatically lead to higher economic growth. Hence, paying too much attention to investment amount is not enough and capital utilization efficiency should be concerned.

 

 3. Capital utilization efficiency

       Measuring the efficiency of capital utilization by ICOR, Vietnam's productivity of investment is comparatively high. However, ICOR of Vietnam in the past years has not reflected fully an increase in efficient capital utilization. Vietnam's recent growth has been characterized by increasingly capital-intensive industrialization and by inefficient growing investment, low-return investments (WB, 1997). Attracting huge amount of foreign capital but utilization of these sources is not efficient create pressures balance of payments as well as on capacity of paying debt obligation in the future.

       Therefore, the debt should be considered in relation with export growth. However, export growth may not be enough to assess the sustainablity of debt and the CA deficit because the important role of import growth rate was not be taken into account. Moreover, change in international interest rate makes cost of financing CA deficit different. Jaime de Pine's Dynamic Debt Model will take into account all these factors. Let's move to the chapter 4 for analyzing the CA deficit  and debt sustainability by that model.

 

Chapter 4

 The current account deficit sustainability

and  external debt sustainability

I. Data base

       The data of external debt becomes a problem that needs to be considered because Vietnam's external debt consists of two distinct components: its Transferable Rubles (TR) debt and its hard currency debt. In term of original data, there were no difference between data published by the World Bank, the IMF and Vietnam. However, there are big difference among three sources of data due to different exchange rates between USD and Transferable Ruble. WB uses the exchange rate of USD1=0.56 TR, IMF uses the exchange rate of USD1 = 2.4TR while Vietnam expects the exchange rate of USD 1=5.5 TR. Therefore, the WB databases show that Vietnam is in severely indebtedness while IMF and Vietnam database show that Vietnam's external debt is not severe. However, as mentioned in chapter 1, these critical indicators are somehow arbitrary. The more important thing when seeing external debt of one country is whether  the country is solvent? It depends on its own capacity to repay debt. In turn, repayment capacity depends on the export growth rate, import growth rate as well as the change in international interest rate. All these indicators are taken into account in Jaime De Pine' s debt dynamic model.

        However, which database should be used in analyzing CA deficit and debt sustainability by Jaime De Pine's Model? The most relevant data  used in this thesis is the IMF data. There are some reasons for that.

·        The exchange rate used by World Bank is the exchange rate used by CMEA members in batter trade. This exchange rate was not regulated as the exchange rate for debt repayment.

·        Converting Transferable Ruble debt to USD by the exchange rate of Transferable Rubles 0.56 against USD1 is not realistic.

·        Although exchange rate agreed between Vietnam and some countries in CMEA is around Transferable Rubles 5.5 against USD 1, the outstanding debt of Vietnam to these countries is very small. Therefore, it is not sure that Soviet Union accept this exchange rate.

 

II. the Current account deficit and  Debt sustainability analysis

1. The period of 1989-1998

       Using a series of economic indicators such as export and import growth, stock of debt, interest rate on debt during 1989-1998 with base year of 1989, all variables used in Jaime De Pine Model are calculated and simulated to find debt-to-export ratio and import restraint at each year.

 

1.1. Debt-to-export ratio, 1989-1998

       Simulating with (b) equal 1 and two above cases of (a), the trend of debt-to-export ratio is indicated in  Table 4.1.

       Table 4.1 shows that the debt-to-exports declined rapidly, from 5 in early of this decade to 2.09 in 1999. So the conclusion is that the CA deficit and the external debt of Vietnam are sustainable in this period .

 

Table 4.1: Vietnam: Debt-to-Export ratio, 1989-1998

b

a

1990

1991

1992

1993

1994

1995

1996

1997

1998

 

(Given 1989 initial value (according to IMF data): d0 = 5.85; v0 = 1.27

1

0.81

5.01

4.33

3.77

3.33

2.97

2.67

2.43

2.24

2.09