新兴市场金融脆弱性:基于国际资本易变性的分析

随着国际资本流动规模的日益庞大,其易变性的破坏力也越来越大,而且在新兴市场国家表现得尤为强烈,这加剧了新兴市场国家金融脆弱性。国际资本易变性从冲击货币稳定、影响国际收支的可维持性以及国际游资对金融市场的高度投机三个方面加剧了新兴市场金融脆弱性。它在新兴市场表现尤为强烈的原因在于新兴市场的不稳定性和不成熟性。     

Random Walks and Market Efficiency Tests: Evidence from Emerging Equity Markets

We use the multiple variance-ratio test of Chow and Denning (1993) to examine the stochastic properties of local currency- and US dollar-based equity returns in 15 emerging capital markets. The technique is based on the Studentized Maximum Modulus distribution and provides a multiple statistical comparison of variance-ratios, with control of the joint-test's size. We find that the random walk model is consistent with the dynamics of returns in most of the emerging markets analyzed, which contrasts many random walk test results documented with the use of single variance-ratio techniques. Further, a runs test suggests that most of the emerging markets are weak-form efficient. Overall, our results suggest that investors are unlikely to make systematic nonzero profit by using past information in many of the examined markets, thus, investors should predicate their investment strategies on the assumption of random walks. Additionally, our results suggest exchange rate matters in returns' dynamics determination for some of the emerging equity markets we analyzed.     

Public Information Arrival and the Fisher Effect in Emerging Markets: Evidence from Stock and Bond Markets in Turkey

We examine the impact of inflation on nominal stock returns and interest rates in Turkey's emerging economy, which has a moderately high, persistent, and volatile inflation rate. Empirical evidence indicates that Turkey's inflation increased more than nominal stock returns and interest rates, implying that real returns to investors declined during our sample period. Among the different sector indexes we study, the financials sector serves as the best hedge against expected inflation, and the Fisher effect appears to hold only for this sector. We also find that public information arrival plays an important role, especially in the stock market.     

Internal Capital Markets, Bank Borrowing, and Financing Constraints: Evidence from Belgian Firms

In Belgium, financial and industrial groupings play a crucial role in the accumulation and allocation of capital in the economy. In this paper, it is hypothesized that Belgian firms for which investment is partly financed on an internal capital market, will not be subject to financing constraints to the same extent as firms which have to borrow from banks. Moreover, it is hypothesized that firms belonging to a group, transfer internal surpluses of funds to other group members by investing in financial assets. An empirical analysis confirms the first hypothesis, but rejects the second hypothesis.     

Efficient Markets Hypothesis and the Emerging Capital Market in Sri Lanka: Evidence from the Colombo Stock Exchange – A Note

The behaviour of stock prices on the Colombo Stock Exchange (CSE) is examined with a view to determine its consistency with the weak form of the Efficient Markets Hypothesis (EMH). Runs, Autocorrelation and Cointegration tests are applied to daily, weekly and monthly CSE index data for the period of January 1991–November 1996. Results of Runs, Correlation and Cointegration tests overwhelmingly reject the serial independence hypothesis, leading to the conclusion that the behaviour of stock prices in the Colombo Stock Exchange is not consistent with the weak form of the Efficient Markets Hypothesis. Tests of the-day-of-the-week-effect, however, show that there is no evidence of such a phenomenon on the Colombo Stock Exchange stock prices. Results of the tests of the-month-of-the-year-effect lead to the conclusion that CSE prices do not display any month-specific behaviour.     

Financial Integration of Large- and Small-Cap Stocks in Emerging Markets

This study examines the financial integration of large- and small-cap stocks in twenty-three emerging markets to determine their degree of market integration with the world market. The international asset pricing model cannot be rejected for most large-cap stock portfolios, but it is rejected for small-cap stock portfolios. The findings also demonstrate that super-large-cap stocks have the fewest pricing errors and their global financial integration has increased in recent years. In sum, the empirical results indicate that global market integration is primarily associated with the super-large-cap stocks of large emerging markets.     

Returns,Volatilities, and Correlations Across Mature,Regional, and Frontier Markets: Evidence from South Asia

We investigate returns, volatilities, and correlations across mature, dominant regional, and frontier equity markets. Standard & Poor's 500 is chosen as a mature equity market; India is chosen as a dominant regional market; and Bangladesh, Pakistan, and Sri Lanka are chosen as frontier markets. Our empirical tests show that the frontier markets remain fundamentally decoupled from the mature markets during normal market periods. During turbulent times, the contagion effects from the mature to the frontier markets become more pronounced. The results suggest that the dominant regional market plays a key role in disseminating shocks across the frontier markets during normal periods; during the turbulent recent financial crisis period, a similar contagion is not observed.     

新兴市场国际资本逆转问题的观察与分析

席卷全球的金融危机改变了国际资本流入新兴市场的既定状况。由于世界范围内的信贷严重紧缩和美元的高调升值,形成了金融资本大规模撤离新兴市场国家的新现象。这一资本逆转的结果不仅可能加大新兴市场国家货币的贬值压力,冲击和干扰其本已脆弱的金融体系,而且势必打击该区域实体产业和既有福利。国际社会应当从加强监管、密切金融合作和消除贸易保护主义等方面尽可能阻止金融资本撤离新兴市场的进程和规模。     

Contagion of Capital Markets in CEE Countries: Evidence from Wavelet Analysis

We employed wavelets technology to investigate how and when contagion occurred on 10 Central and Eastern European financial markets in relation to Western European and US financial markets during 2000–2016 and their different reactions on the background of changes in their regulatory framework. We found that most of Central and Eastern European (CEE) capital markets showed contagion in relation to both Western European and US markets between 2005 and 2009, while Slovakian and Estonian markets showed no contagion. However, during 2010–2016, Croatian market showed de-contagion in relation to Western European market, while Bulgarian, Czech, Hungarian, and Polish markets showed de-contagion in relation to US market, increasing their independence.     

Global Economic Divergence and Portfolio Capital Flows to Emerging Markets

This paper studies the role of global and regional variations in economic activity and policy in developed world in driving portfolio capital flows (PCFs) to emerging markets (EMs). Results suggest that PCFs to EMs depend mainly on economic activity at the global level and monetary policy in America and Asia, positively on the former and negatively on the latters. PCFs are procyclical with respect to global activity, but countercyclical to regional activity. In aggregate, regional variations contribute more than global variations. This implies that economic divergence in the developed world can have significant effects on EMs via PCFs.     

Search Frictions,Financial Frictions,and Labor Market Fluctuations in Emerging Markets

This article examines the role of the extensive and intensive margins of labor input in the context of a business cycle model with a financial friction. We document significant variation in the hours worked per worker for many emerging-market economies using manufacturing data. Both employment and hours worked per worker are positively correlated with each other and with output. We show that a search-theoretic context in a small open-economy model requires a small wealth effect to explain these regularities at the expense of a smaller wage response. On the other hand, introducing a financial friction in the form of a working capital requirement can explain the observed movements of labor market variables such as employment and hours worked per worker, as well as other distinguishable business cycle characteristics of emerging economies. These include highly volatile and cyclical real wages, labor share, and consumption.     

Political Risk and Foreigners' Trading: Evidence from an Emerging Stock Market

This paper analyzes the impact of political risk on foreign investors' trading in emerging stock markets, market-wide and for industry portfolios, using quantified political risk ratings reported in the International Country Risk Guide and foreign flows data compiled by the Istanbul Stock Exchange. We also track the differential effect of political risk upgrades and downgrades. Political risk is shown to affect stock returns, net foreign flows, and macroeconomic variables. Foreigners' reaction to upgrades (downgrades) is slow (immediate) and smaller in magnitude. Foreigners' reaction to political risk varies with industry's sensitivity to market risk, except for the tourism sector, where their response is particularly salient. Local investors appear to provide liquidity to foreigners, who respond to information.     

Financial Shocks and Corporate Investment in Emerging Markets

We examine how cross-firm and cross-country heterogeneity shapes the responses of corporate investment in emerging markets to changes in U.S. monetary policy and financial-market volatility, the latter proxying for uncertainty. We find that in response to increases in U.S monetary policy rates or financial-market volatility, financially weaker firms reduce investment by more than financially strong firms. We also show that firms with stronger balance sheets delay investment voluntarily when faced with higher uncertainty. Finally, we find that stronger macroeconomic fundamentals (lower public debt or higher international reserves) help to buffer corporate investment from increases in U.S. monetary policy rates.     

Stock Market Volatility in an Emerging Market: Further Evidence from the Athens Stock Exchange

We investigate the time series properties of the daily and weekly returns from the Athens Stock Exchange (ASE) index for the years 1987 to 1997. We investigate whether important time-series characteristics have changed significantly over time. The Greek market has recently undergone major changes including complete capital flow liberalization, the implementation of computerized trading, as well as significant increases in market volume and capitalization; we thus contrast the 1987–90 and 1991–97 periods. Our findings suggest the dynamics of the ASE composite index returns have changed as the market has developed.     

人力资本投资:风险与风险规避

自美国经济学家发现人力资本对经济发展的巨大贡献以来,人们的注意力主要集中于阐述人力资本投资的高收益性,而人力资本投资的风险性却很少被论及。实现有效的人力资本投资,必须建立在充分认识人力资本投资特点的基础上,而规避人力资本投资风险的根本途径是明晰人力资本产权和建立人力资本市场。     

Volatility Spillover Effects in Interregional Equity Markets: Empirical Evidence from Brazil and Turkey

We investigate volatility spillovers between two stock markets: Turkey and Brazil. Using a misspecification-robust causality-in-variance test, we find evidence supporting volatility spillovers from the São Paulo Stock Exchange to the Istanbul Stock Exchange. Moreover, the results imply that financial crises may change the nature of volatility spillovers between the two markets by adding an additional channel of volatility transmission from Turkey to Brazil.     

Valuation Model of Defaultable Bond Values in Emerging Markets

This paper develops a model to value defaultable bonds in emerging markets. Default occurs when some signaling process hits a pre-defined default barrier. The signaling variable is considered to be some macro-economic variables such as foreign exchange rates. The dynamics of the default barrier depend on the volatility and the drift of the signaling variable. We derive a closed-form solution of the defaultable bond price from the model as a function of a signaling variable and a short-term interest rate. The numerical results show that the model values generated by using foreign exchange rates as the signaling variables can broadly track the market credit spreads of defaultable bonds in South Korea and Brazil. Given an expected level of the foreign exchange rate, defaultable bond values under a stressed market situation can be obtained.     

Impression Management in Letters to Shareholders: Evidence from Poland

We study impression management in an emerging market setting with high ownership concentration. Using content analysis, we identify impression management techniques in a sample of letters to shareholders written in the Polish language by the 60 largest companies listed at the Warsaw Stock Exchange in 2008 and 2013. We find patterns in the occurrence of these techniques with the use of k-means clustering: the largest cluster includes letters that praise the management, while the rest include defensive arguments, discussions of negative outcomes and short, formal letters. The more concentrated ownership is, the shorter the letters are, which indicates that management invest less effort in communicating with investors. This is particularly visible in companies held by insiders, which tend to produce short, formal letters, devoid of impression management. In contrast, companies controlled by foreign shareholders prepare letters that are longer and which are more likely to present defensive arguments, while institutional non-controlling shareholders favour extensive disclosure. The results shed light upon communication practices in Central and Eastern Europe, and offer implications for regulators and managers that may help strengthen the information environment in regional stock markets.     

Global Liquidity and Financial Stress: Evidence from Major Emerging Economies

We examine the relationship between financial stress and global liquidity for the so-called fragile five emerging economies (Brazil, India, Indonesia, South Africa, and Turkey). By using an extensive set of variables that take into account the structural characteristics of these economies, we construct a financial stress index. We then use a Markov regime switching model to identify the high financial stress episodes. We examine periods of heightened financial stress and its relationship to high incidence of domestic and global disturbances. Finally, we construct a global financial liquidity index and assess the relationship between financial stress and global liquidity. Using a bivariate Markov regime switching VAR model, we find a regime-dependent relation between global liquidity and financial stress. Moreover, global liquidity shocks seem to strain these emerging economies in such a way that global illiquidity heightens financial stress.     

新兴市场环境下机构投资者投资行为——基于中国大陆资本市场的研究

本文研究中国为代表的新兴资本市场中机构投资者的投资行为。我们发现,以证券投资基金为代表的机构投资者偏好净损失成本较低的个股,同时关注股票所在地域的经济发展水平和行业特征。基金对经济发展较好地区的个股采取价值投资策略,而对上游行业产值较高和垄断行业产值较低地区的个股则表现出"题材"式迎合策略与价值型策略兼顾的投资行为。而这种两者兼顾的投资策略可以带来更好的业绩。