Proceedings of World Business and Social Science Research Conference 24-25 October, 2013, Novotel Bangkok on Siam Square, Bangkok, Thailand, ISBN: 978-1-922069-33-7 Foreign Banks in Vietnam: Determinants of Profitability and Comparison with Domestic Banks Lien Dinh This study examines the determinants of foreign bank profitability and makes a comparison on performance of foreign banks and domestic banks using the fixed effects method. It argues that foreign bank profitability is influenced significantly by all bank specific factors, macro-economic factors and multinational bank indicators. The findings provide strong evidence that total assets and other income have positive impact on profitability. An interesting finding is that parent bank profitability indicates significant and negative influence on foreign bank profitability. Moreover, foreign banks perform better than domestic banks due to their ownership advantage. When deregulation began in 2011, all foreign banks started to perform well; they became significant competitors for local banks. This study will provide bankers and policy makers with a greater understanding of foreign bank profitability to compose the appropriate future strategies. Field of research: foreign bank profitability and performance 1. Introduction The globalization of the banking industry has stimulated many developing countries into opening their markets to foreign banks. Therefore, foreign banks worldwide have more opportunities to expand their networks. Vietnam has also kept up with this significant trend in the banking industry, and has allowed foreign banks to join the market since the 1990s. The country has gradually deregulated which has allowed the entry of foreign banks and built up the industry infrastructure to international standards. This process started with the change to the banking system. A one tier banking system was transferred to a two tier banking system as a result of Decree 53/HDBT (issued 26 March 1988) (SBV, 2012b). Four state owned commercial banks were established by separating from four main departments of the State Bank of Vietnam. Shortly, private commercial banks were encouraged to enter the market. Foreign bank branches and domestic privately owned banks started to set up their operations. A gradual deregulation of foreign bank operations was seen between Decrees 13 and 22 (Tram, 2011). According to Tram (2011), Decree 13 was issued in 1991 with some limitations in terms of: the percentage of share ownership in a joint venture; length of operation for banks, permission for saving deposits and capital requirements. Further deregulation was effected with the implementation of Decree 22 (issued in 28 Febuary 2006) (Government, 2006b). The Decree allowed 100% foreign owned banks to enter the market. This type of bank was treated as a domestic bank with respect to types of business and office expansion. Also, all foreign banks are subjected to the national treatment from 2011 (Nguyen, 2011). Little has been known about foreign bank performance in Vietnam until now because of the lack of data, thus, this paper aims to explore how foreign bank perform in Vietnam. In particular, this paper will discuss the determinants of foreign bank profitability and the comparison between foreign bank performance and domestic bank performance. This paper contributes to the literature in three ways. Firstly, the author applies the fixed effects method to analyse the data of the whole banking system, with data upgraded to the end of 2012, while the literature has examined the data only up to 2006; a six-year gap will thus be filled. Secondly, the study will examine bank specific factors, Vietnamese macro-economic factors 1 Proceedings of World Business and Social Science Research Conference 24-25 October, 2013, Novotel Bangkok on Siam Square, Bangkok, Thailand, ISBN: 978-1-922069-33-7 and multinational banking factors regarding determinants of foreign bank profitability. These three sets of variables describe a whole picture about the determinants of foreign bank profitability. Finally, the study compares foreign banks‟ performance and domestic banks‟ performance to provide a detailed explanation for each type of bank which has not been done in earlier studies on this topic. The rest of this paper is organized as follows. Section 2 reviews related literature in terms of factors influencing profitability and comparison of domestic and foreign bank performance. Section 3 describes the method and data used for analysis. Section 4 presents the results and discussion on the results, while section 5 demonstrates the main conclusion. 2. Literature Review 2.1 Bank specific factors In this section, the author will review the related literature that studied the determinants of foreign bank profitability using data from 70 countries, European Union market, Grece and Thailand. The results from those studies are mixed but play a crucial role as motivation for the current study. Firstly, in a study by Chen (2011) off 70 countries, almost all the coefficients are significant, indicating strong impacts of bank specific factors on profitability. Chen (2011) found that the higher the opportunity cost inccured, the higher the return that banks can achieve. Banks that are involved in more non-interest activities, will have a decrease in their return. Regarding the size of the banks, Chen (2011) found only small banks can benefit from economies of scale. Having used a large set of data from 1992 to 2006, Chen‟s conclusion is highly reliable. Secondly, Pasiouras and Kosmidou (2007) argued that foreign banks‟ profitability is significantly influenced by bank specific factors in the European Union from 1995 to 2001. They found that equity to total assets significantly and positively influences return on assets, indicating that safe banks are less likely to be bankrupt and can easily expand their business thanks to their rich equity. The cost to income ratio negatively impacts on the return because inefficient cost management leads to the reduction of profit. Foreign banks earn lower profits when they deliver more loans. Moreover, foreign banks experience a reduction on their return if their size increases, which is similar to the findings of Chen (2011). Both studies used a short time frame of data, which may not provide sufficiently strong support for measuring the economies of scale properly. Thirdly, unlike the study of Chen (2011) where almost all the coefficients are significant, the study of 19 Greek bank subsidiaries‟ profitability shows only a significantly negative relationship between foreign banks‟ total assets and return on assets (Kosmidou et al., 2007). Kosmidou et al. (2007) found a similar result to that of Pasiouras and Kosmidou (2007) and Chen (2011) regarding the economies of scale. Finally, in the Thai market, Chantapong (2005) found that foreign banks benefit from their ownership advantages in terms of advanced technology producing services. Non-interest income shows a positive relationship with return on assets, while loan loss reserve, overhead cost and liquidity ratio, impact on the return negatively. The more foreign banks are involved in non-interest activities, the higher the return they earn. This is because foreign banks enjoy the 2 Proceedings of World Business and Social Science Research Conference 24-25 October, 2013, Novotel Bangkok on Siam Square, Bangkok, Thailand, ISBN: 978-1-922069-33-7 market‟s share, focusing on advanced technology, while local banks can not. This situation may occur for foreign banks in Vietnam, a developing country just as Thailand is. To conclude, studies about many countries found mixed results on the return on assets but for one country, Thailand. Taking Thailand as an example, foreign banks take advantage of foreign investment conditions in developing their services and getting high returns when they supply more modern services. It is because in developing countries, domestic banks are inefficient and own subprime standard technology. 2.2. Macro-economic factors The literature shows that the state of the host market‟s economy impacts on foreign bank profitability. The main factors such as economic growth rate, inflation rate and financial institution quality will be discussed as follows. In examining the impact of host market factors in New Zealand, To & David (2002) include the factor of difference in GDP growth rate between home and host countries. This factor indicates a small influence on profitability from the mixed data on banks which focus on both the retail market and wholesale markets. However, Kosmidou and Pasiouras (2007) found no significant relationship of difference in the GDP growth rate between home and host countries and foreign banks‟ profitability. One study found that the GDP growth rate in the host country has negative influence on the return because of high competition in the host market (Pasiouras and Kosmidou, 2007). Chen (2011) found that the inflation rate has a positive relationship to banks‟ returns. In high risk countries, the theory about the risk-return relationship works, which means banks facing high risk will earn a high return. Similarly, Horen (2007) and Claessens (2001) demonstrated that the inflation rate contributes to an increase of net interest margin. When banks face higher risk, they adjust their interest rate spread to compensate for the risk. Mixed results appear in the research when taking into account the quality of financial institution, quality being an independent variable. Horen (2007) concluded that foreign banks originating from developing countries benefit from weak institutional quality of the host market. This may be explained by the fact that those banks experienced similar weak institutional quality in their home countries. Foreign banks, facing unsuitable accounting standards, “opaque” management and unprotected minority shareholders after one year of acquisition, fail to perform well (Wahyoe, 2011). However, if the host country had a high quality institution, foreign banks experienced a reduction in their performance because of high competition (Claessens, 2011). Thus the result depends on the specific context of study, but generally a low quality financial institution harms foreign banks‟ profitability. 2.3 Multinational bank indicators This section will consider parent bank profitability and foreign bank experience as two main multinational bank indicators. Parent banks impact on their subsidiaries‟ performance in terms of financial and technological support. In New Zealand, parent banks‟ profit plays a dominant role in foreign bank performance due to their ownership advantage which they transfer to their subsidiaries (To, 2002). Nevertheless, a close relationship with parent banks means that foreign banks are responsible for supporting their parent banks in return in the case of those banks facing difficulties (Haselmann, 2006). Therefore, foreign banks might scale down their size to support their parent banks. While the above studies find a close connection between 3 Proceedings of World Business and Social Science Research Conference 24-25 October, 2013, Novotel Bangkok on Siam Square, Bangkok, Thailand, ISBN: 978-1-922069-33-7 parent banks‟ profitability and foreign banks‟ performance, Sturm (2008) finds no existing relationship because “the parent banks are not necessarily able to export the attributes that generate this profitability to new host nations” (Sturm, 2008, p. 2354). The length of time that foreign banks operate in New Zealand has a positive impact on profitability (To, 2002). Foreign banks in New Zealand have set up long-term strategies, so they can enjoy low-cost deposits from local customers as well as they can limit costs emerging in the early stage of entry (To 2002). 2.4 Comparison with domestic banks The performance of foreign banks compared to domestic banks is different according to the types of host markets and types of foreign banks. In developing countries, foreign banks often perform better than domestic banks due to their ownership advantages (Claessens, 2001, Pasiouras and Kosmidou, 2007, Havrylchyk and Jurzyk, 2011) and because the domestic banks became weak after suffering the crisis (Manlagñit, 2011, Wu, 2011). However, in developed countries, foreign banks face high competition and experience a reduction in profit and perform much worse than domestic banks (Nolle, 1996, Sturm, 2008). Greenfield banks (100% foreign owned banks) were more efficient and held a lower degree of risk than other types of foreign banks in Asia, Latin America and Central and Eastern Europe between 1996 and 2003 (Wu, 2011). In Vietnam, restrictions limited foreign operations in the early stages of entry, then the deregulation began gradually, providing preparation time for local banks to develop (Nahm, 2008). Therefore, domestic banks outperformed the foreign banks due to the benefit of local market knowledge and longevity (Nahm 2008). Among domestic banks, the state owned commercial banks dominate the market and perform the best because of government support and their long existence (Truong, 2011). However, their dominant role will be steadily replaced by foreign owned banks and the active private banks when the market opens freely to these enterprises. The above studies regarding foreign banks in Vietnam examine the data period up to 2006; from that time until now, many changes have occurred. A study is needed to update the data. Therefore, at what level and how foreign banks can perform in Vietnam from 2000 to 2012 will be studied, in detail, in subsequent sections. 3. Data Collection and Methodology 3.1 Data The sample is an unbalanced panel data set of 51 commercial banks operating in Vietnam from 2000 to 2012. There are four types of banks included in the data set such as state owned commercial banks, private banks, 100% foreign owned banks and joint venture banks. The data was collected from a Fitch Ratings source, which was updated only to 2011, so the author collected the data for 2012 from banks‟ websites and from the State Bank of Vietnam through personal contacts. Data for Vietnamese macroeconomic factors came from “Country Data” compiled by the World Bank. Data on financial institutional quality came from the Worldwide Governance Indicators, which was composed by Kaufmann Kraay, & Mastruzzi (2012). 4 Proceedings of World Business and Social Science Research Conference 24-25 October, 2013, Novotel Bangkok on Siam Square, Bangkok, Thailand, ISBN: 978-1-922069-33-7 3.2. Methodology 3.2.1. Dependent variables The performance of a foreign bank can be measured using the before tax profit/total assets and net interest margin. The before-tax profit is a proxy for the profitability of banks and is directly linked to a bank‟s overall performance. An increase in profit may come from cost reduction or revenue surge or both at the same time. Net interest margin is used to measure the effectiveness of banks in their core activity (lending). 3.2.2. Independent variables One set of variables that directly affects the performance of foreign banks will be used: bankspecific indicators. Two sets of variables, the host country factors and the multinational banking factors (which play a role as controlled variables), indirectly influence on foreign bank profitability. Appendix 1 provides a description of all the variables and hypotheses in regard to their relationships with profit before tax and net interest margin. The current study will use a set of bank specific variables such as the ratio of overhead costs, short term customer fundings, equity, loans, loan loss provision and other income, to total assets; and total assets to the whole banking total assets. The overhead cost represents the bank‟s ability to manage administration costs. The customer and short-term funding ratio is used as a proxy for a bank‟s ability in attracting and accessing cheap funds (deposits and other short-term funding). The level of bank equity reflects a bank‟s risk management strategy and its ability to earn profits. The loan to total assets ratio can be related to two, perhaps conflicting, aspects: a bank‟s market power in the loan market and its unwillingness to change and engage in new services. Loan loss provision indicates the bank‟s ability to manage credit risk. Other income is a proxy to evaluate bank ability to diversify their business and the level of technology producing the advanced services. The ratio of total assets reflects the bank scale as well as the market share. In terms of the country specific factors, this study will apply the Vietnamese GDP growth rate, the inflation rate, the depth of the financial sector and institutional quality as explanatory variables. These variables reflect the macroeconomic environment that would indirectly affect a bank‟s profitability. The depth of the financial sector is measured by the ratio between M2 and GDP. The institutional quality will be adopted from Kaufmann et al.,(2012), who measured the level of governance quality. In addition, being multinational, foreign banks are impacted by indirect factors such as the parent bank‟s before-tax profit to total assets, and the experience of banks. It is said that the parent bank‟s health has a positive relationship to foreign bank performance due to their support regarding technology and finance. The length of operation will build up the foreign bank‟s experience of the market and culture, which increases business opportunities. 3.2.3 Estimation technique The fixed effects model is chosen rather than random effects for some major reasons. Firstly, the data set has a number of banks (51), much larger than the number of years (13), and the data set includes the whole banking system instead of random choices. Secondly, the author 5 Proceedings of World Business and Social Science Research Conference 24-25 October, 2013, Novotel Bangkok on Siam Square, Bangkok, Thailand, ISBN: 978-1-922069-33-7 assumes that the error component ( i ) and the explanation variables are correlated. In addition, the assumption that all individual banks‟ differences were captured by differences in the intercept parameter (p.551) (Carter Hill, 2011). Finally, the results from the Hausman test are larger than the critical chi-square 02.5,10 9.341 or 02.005,10 25.182 , and all results are significant at 1% (Appendix 2). To deal with the problem of cross-section hetoroscedasticity, White‟s transformation is applied. The following model will be used to discuss this issue: Iit 0 1Bit 1 X t t Zit it Where Iit refers to foreign banks‟ profitability measured by the net interest margin, the ratio of profit before tax to total assets of individual foreign bank i operating in Vietnam at time t. Bit indicates foreign bank characteristics, Xt refers to Vietnamese characteristics and Zit represents the parent banks‟ profitability and banks‟ experience. The model is applied for domestic banks and all banks together in order to compare the performance of foreign banks with domestic banks Iit 0 1Bit 1 X t it Where Iit refers to domestic bank profitability measured by the ratio of profit before tax to total assets and net interest margin of bank i at time t. Bit indicates domestic bank characteristics and Xt refers to Vietnamese characteristics as in the original model. This paper differs from the literature because the fixed effects model is applied to run the regression of three sets of variables which are separated in the previous studies. In particular, Kosmidou et al., (2007), Pasiouras et al., (2007) and Horen (2007) investigated the bank specific factors and macroeconomic factors, but not multinational banking factors. To (2002) combined the investigation of bank specific factors with multinational bank factors, but not macroeconomic factors. Consequently, a study conducting three sets of variables together is necessary to provide a deep understanding of determinants of foreign bank profitability. In addition, the literature examines the different ranges of variables to the current set of variables regarding to the same group of indicators. For instance, Kosmidous et al., (2007) considers exports from a host nation to Greece, or the difference between the GDP growth rates of the host and home country, while the author evaluates the annual GDP growth rate, inflation rate and the quality of financial institutions. Furthermore, the literature limits the data length to 2001, which is far from the current time. Thus, upgrading the data is one of the current study‟s objectives. 4. Empirical Results 4.1. Determinants of foreign bank profitability and a comparison with domestic banks The results indicate that total assets and other income show significant and positive relationships with foreign bank profit before tax (Table 1). Almost all foreign banks‟ scales are small because of the restrictions and the „early stage of entry‟ factor. Therefore, if they can increase their size, they will earn a higher profit before tax. Furthermore, an increase in total assets means an increase in investment, which produces a high return at the later stage. This result concurs with that of Havrylchyk (2011) who found that foreign banks in 11 Central Eastern European countries 6 Proceedings of World Business and Social Science Research Conference 24-25 October, 2013, Novotel Bangkok on Siam Square, Bangkok, Thailand, ISBN: 978-1-922069-33-7 Table 1: Determinants of banks’ profit before tax Intercept Bank specific factors Cost Foreign banks Domestic banks All banks -0.092(-0.960) -0.027(-1.546) -0.027(-1.661)* 1.144(1.124) 0.473(4.290)*** 0.508(3.589)*** Customer deposits -0.015(-0.332) -0.003(-0.851) -0.003(-0.855) Equity -0.061(-0.557) 0.044(3.251)*** 0.037(2.650)*** 0.024(1.041) 0.005(1.197) 0.005(1.139) Loan Loan loss provision 0.668(0.626) -0.001(-0.325) -0.001(-0.482) 3.382(2.025)* 0.007(0.400) 0.012(0.621) Other income Macro-eco factors 0.142(2.359)** -0.017(-1.156) 0.001(0.089) Growth rate of GDP -0.047(-0.131) 0.092(2.571)** 0.113(2.980)*** 0.039(1.206) -0.008(-0.901) 0.001(0.075) -0.009(-0.254) 0.005(0.342) 0.011(0.739) 0.047(0.751) 0.013(2.851)*** 0.014(3.078)*** 0.641 0.605 193 218 292 338 Total asset (ratio) Inflation rate Financial ins quality The depth of fin system Multi bank factors Parent bank's profit Experience Adjust R Hausman test Observation -0.141(-2.122)** -0.001(-0.523) 0.493 33.01 44 ***: Statistically significant at the 1% level; **: at the 5% level; *: at the 10% level experienced the economies of scale if they increased their sizes. Foreign banks in Vietnam are still small, and an increase in size will increase their return. In 2001, the median of total assets of Greek subsidiaries was 439 million EUR (Kosmidou et al., 2007), while the average total assets of four joint venture banks in Vietnam was 76 million USD (author calculated from the data source). An increase in other income leads to a rise in foreign bank profitability, indicating that foreign banks benefit from their ownership advantage. The profit structure of foreign banks differs highly from that of domestic banks. While domestic banks earn 80% of their profit from interest activities, foreign banks earn 80% of their profit from non-interest income (Bank, 2009). They develop many sophisticated services regarding payment for international trade such as money transfers, foreign exchange, guarantees, letters of credit, forfeiting, etc. Domestic banks focus on traditional business such as making loans and they cannot compete with foreign banks regarding the provision of services. This result concurs with the findings of Chantapong (2005). It is interesting that parent bank profitability indicates a significant and negative impact on foreign banks‟ profit before tax. It contrasts with the findings of To (2002), Kosmidou et al., (2007) and Chen (2011). However, Haselmann (2006) concluded that due to their close relationship with parent banks, foreign banks have to reduce their scale in order to support their parent banks in instances where they face financial difficulties. The GFC, which occurred in 2007, adversely affected banks worldwide. Thus, many parent banks had to reallocate their resources to compensate for losses incurred. Moreover, Vietnam is a developing market whose size is small. Parent banks may not focus much on boosting their subsidiaries‟ 7 Proceedings of World Business and Social Science Research Conference 24-25 October, 2013, Novotel Bangkok on Siam Square, Bangkok, Thailand, ISBN: 978-1-922069-33-7 operations. In addition, the limitation on raising deposits causes difficulties for foreign bank expansion, which makes it difficult for parent banks to strongly support their subsidiaries. Another possible reason for that result is that when parent banks earn higher profits in their home market than in foreign markets, they may scale down the operation of their foreign banks to concentrate on the home market (Haas, 2006). There are four significant determinants for domestic bank profitability: cost, equity, GDP and the depth of the financial system. Due to their dominant role in the market, domestic banks may transfer some part of the cost to customers, so they can still earn high profits despite an increase in cost (Horen, 2007). All banks in Vietnam met the minimum capital requirement of 3,000 billion VND (21,000VND/USD) in 2013 (Nguyen, 2013). The capital of four state owned banks dominated the market while that of the foreign banks are equal or just over the minimum requirement. Consequently, equity appears to be one contributor to the profitability of domestic banks. GDP shows a strong and positive influence on the domestic banks while it shows no significant impact on foreign banks. During the period from 2000 to 2012, GDP growth rate remained high, starting at 6.78% and reaching a peak of 8.45% in 2007, before slightly reducing to 5.03% in 2012 (WorldBank, 2012). Domestic banks took advantage of this to offer more loans. Furthermore, if the country‟s economic development is progressing well, customers easily repay their debts. This result corresponds to that of Pasiouras at el., (2007). The „depth of financial system‟ factor contributes to an increase in return for domestic banks. In Vietnam, due to the fast development of both the stock and real estate market, demand for credit increased quickly during 2007-2011 (Worldbank 2012). In addition, to deal with the economic downturn after the GFC, the government applied an expansionary monetary policy, which encouraged banks to lend more money. As a result, the high level of M2/GDP was created (Nguyen, 2013). 4.2. Determinants of foreign bank efficiency and a comparison with domestic banks The cost ratio has a significant and positive relationship with the net interest margin for all banks at 1% of significance. During the period 2001-2006, all banks experienced a reduction in cost efficiency due to their increased investment in modern technology such as the establishment of automatic teller machines, and computer software upgrades (Vu, 2010). This result is in line with Horen‟s (2007) study. Due to their dominant role in the market, domestic banks may transfer some part of the cost to customers through high interest rates. Foreign banks in developing countries (income per capita under 4,810USD) realise a higher interest margin than foreign banks in countries with a greater income per capita (Horen, 2007). 8 Proceedings of World Business and Social Science Research Conference 24-25 October, 2013, Novotel Bangkok on Siam Square, Bangkok, Thailand, ISBN: 978-1-922069-33-7 Table 2: Determinants of banks’ net interest income Intercept Bank specific factors Cost Customer deposits Foreign banks Domestic banks All banks -0.005(-0.106) -0.001(-0.066) -0.006(-0.494) 1.405(3.548)*** 1.272(8.930)*** 1.291(9.616)*** -0.012(-0.569) -0.005(-1.259) -0.006(-1.319) Equity 0.004(0.114) 0.032(2.445)** 0.027(2.240)** Loan 0.008(0.763) 0.009(1.728)* 0.008(1.907)* Loan loss provision 0.156(0.381) -0.006(-2.005)** -0.006(-2.650)*** Total asset (ratio) 1.214(0.658) 0.016(0.805) 0.018(0.912) Other income Macro-eco factors 0.119(3.002)*** 0.007(0.322) 0.019(0.969) Growth rate of GDP 0.233(1.224) 0.054(1.612) 0.087(2.470)** Inflation rate 0.023(1.352) 0.011(1.183) 0.016(1.827)* Financial ins quality 0.004(0.327) 0.021(2.135) 0.021(2.194)** The depth of fin system Multi bank factors -0.018(-0.550) 0.005(0.910) 0.006(1.237) Parent bank's profit -0.039(-1.555) 0.760 34.65 0.718 176.31 0.718 228.04 44 298 344 Experience Adjust R Hausman test Observation 0.002(1.075) ***: Statistically significant at the 1% level, **: at the 5% level; *: at the 10% level Therefore, foreign banks in Vietnam are most likely to have a high interest margin because Vietnam is a middle income country with GDP per capita (in 2011) was 3,400USD (WorldBank, 2012). Moreover, because of the high demand for credit, all banks may increase their interest rates. The ratios of equity to total assets, and of loans to total assets, indicate a significant and positive relationship with the interest margin of domestic banks. To increase the safety of the banking system, the Vietnamese government has required all banks to raise the capital adequacy ratio (CAR) from 8% to 9% (Government, 2010). In addition, all banks had to raise their capital to the minimum 3000 billion VND (20,000VND/USD) at the end of 2010 (Government, 2006a). As a result, small domestic banks compete to mobilise their captial through a high interest rate. Furthermore, the Circular 02/2011/TT-NHNN, limiting the maximum deposit rate to 14% annually but allowing negotiated lending rates, causes the bridge to transfer cost to customers (Government, 2011). Loan loss provision demonstrates a negative and significant relationship with the interest margin of domestic banks. This is not because domestic banks manage the interest spread well, but because they lose from bad debts. While loan loss provision does not impact seriously on foreign bank net interest margin, it does do so for domestic banks because of their inefficient risk management. Banks who lend to customers mainly base decisions on relationships rather than on customers‟ fiancial health. In addition, the loan loss provision has a strongly negative impact on banks‟ profitability in Vietnam due to the economic downturn of 2008 (Huỳnh, 2013). 9 Proceedings of World Business and Social Science Research Conference 24-25 October, 2013, Novotel Bangkok on Siam Square, Bangkok, Thailand, ISBN: 978-1-922069-33-7 Other income becomes a significant contributor to the net interest margin of foreign banks because of their type of customers. Vietnam is one of the destinations of foreign direct investment with a high FDI/GDP ratio and GDP growth ratio, accompanied by the recent entry of foreign enterprises (Worldbank 2012). Foreign banks in Vietnam may firstly focus on foreign customers from their home countries or from other countries rather than on local customers. Therefore, foreign banks enjoy an increase in interest income because their customers do not pay much attention to the interest rates but to the quality of service and safety. Moreover, their customers may remain in a loyal relationship since they use almost all the banks‟ non-interest services (Bank, 2009). Only domestic banks benefit from Vietnamese financial institutional quality because they may own rich experience from their longevity and internal relationships. Financial institutional quality is measured in terms of six indicators by Kaufmann et al., (2012). The financial institutional quality of Vietnam was around -0.5 during the period from 2000 to 2011, which is lower than the average level (Kaufmann, 2012). Local banks are knowledgeable about local business culture, which mainly depends on relationships. It is to be noted that four state owned commercial banks were separated from the State Bank of Vietnam in 1988, thus they have a close relationship with the people in charge of policy making. The weak regulation provides domestic banks with an opportunity to break the law. For instance, the circular 02/2011/TTNHNN allows banks to negotiate their lending rate with customers. Banks can apply different interest rates based on the extent of their close relationship with their customers, and sometimes this is not in line with the regulation: they may apply a lending rate which is lower than the deposit rate to attract high profile customers or increase the deposit rate through a promotion scheme (Miêu, 2012). Although authorities acknowledge this problem, they are not able to control or punish the banks which break the law. In conclusion, foreign banks perform better than domestic banks because they benefit from the ownership advantage in terms of risk management and advanced technology. As a result they become significant competitors for domestic banks gradually. This result differs to the literature studying the same topic in Vietnam because the study period of literature was limited from 2001 to 2006. This consequence is expected by the government as its effort to restructure the weak banking system. 5. Conclusion The present paper has investigated the determinants of foreign banks‟ profitability and made a comparison of performance between domestic and foreign banks in Vietnam. The findings indicate that total assets and other income contribute positively to foreign bank profitability. Parent bank‟s profit impacts negatively on the foreign bank profitability. This may need a further study for a greater understanding of the reason on the effect of parent bank profitability. The overall picture of the banking system indicates that foreign banks seem to perform better compared to domestic banks as a whole, due to their high investment in technology and efficient risk management. Although inheriting a high ratio of assets and longevity than foreign banks, domestic banks face the highest loan loss provision ratio. From those results, some suggestions can be made for the banking sector in Vietnam and for future research. The state owned commercial banks should restructure their scale to reach optimal size. Moreover, they should invest more in advanced technology to keep up with their competitors. 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Journal of International Money and Finance, 30, 1128-1156. 12 Proceedings of World Business and Social Science Research Conference 24-25 October, 2013, Novotel Bangkok on Siam Square, Bangkok, Thailand, ISBN: 978-1-922069-33-7 APPENDICES Appendix 1: Variables description and hypothesis Variables Description Dependent: -PRO -NIM The profit before tax to total assets Net interest margin Bank-specific factors -CO -EQ -LOA -CSF -LLP -TOA-Ratio -OIN Macro economic factors -GDP -INF -FIQ Multinational banking factors -PAR -EXP01 Hypothesis (direction) Cost to total assets Equity to total assets Loan to total assets Customer and short term fundings to total assets Loan loss provision to total assets The ratio of total assets to the all banks‟ total assets Other income + + + + + The gross domestic production annual growth rate Inflation growth rate annually Financial institution quality of Vietnam + +/- The parent banks‟ profit before tax Length of operation + + Appendix 2: Redundant Fixed Effects Tests PRO Effects Test FB Cross-section F 3.672395 Cross-section Chi-square 33.01425 7 0 Cross-section F 5.623312 -40,240 0 193.086 40 0 Cross-section F 5.148527 -49,277 0 Cross-section Chi-square 218.8536 49 0 Domestic Cross-section Chi-square Whole Statistic Prob. (7,23) 0.0083 ROE Effects Test FB Cross-section F 3.936533 Cross-section Chi-square 34.65362 7 0 Cross-section F 4.962934 -40,246 0 176.314 40 0 Cross-section F 5.431552 -49,283 0 Cross-section Chi-square 228.0436 49 0 Domestic Cross-section Chi-square Whole Statistic d.f. d.f. Prob. (7,23) 0.0058 13