有关外贸企业信用风险及其管理的研究

随着我国市场经济的不断发展,外贸企业之间的竞争日益激烈。很多外贸企业为了占据国外市场,会推出优惠的信用条件,以此作为增加客户的手段,但其信用风险也会随之增加。分析了导致外贸企业信用风险增加的原因,并提出对应管理措施。只有不断降低信用风险,以此提高外贸企业的竞争力,才能使企业不断扩大经营规模,促进企业的不断发展。     

人民币贸易结算的影响因素 ——基于大国博弈视角的一般均衡分析

本文利用一个三部门（两个贸易部门、一个非贸易部门）的静态一般均衡模型，分别在名义工资黏性与实际工资黏性条件下分析货币供给冲击对贸易大国之间结算货币选择造成的影响。结论认为，出口商品结构、国内市场销售厂商占本国市场份额与同部门出口商占进口国市场份额的比值（市场份额比率）以及由汇率波动所引起的两国货币交易成本差额的变化对贸易大国之间结算货币选择策略具有决定性作用。为进一步推动人民币贸易结算的发展，中国与美国、欧盟和日本的进口交易可在产业内贸易模式下选取价格替代弹性较大、市场份额比率较高的产品作为推动人民币贸易结算的重点目标，同时应尽快提升人民币的可兑换性和流通能力，并尽量保持币值稳定以降低人民币对其他主要国际货币的交易成本。     

Evidence of price discovery on the Indonesian stock exchange

The Indonesian stock market is emerging and very little is known about price discovery mechanisms. This paper addresses this research gap by compiling and utilizing a unique stock-level dataset (consisting of 342 stocks) to examine existence and behaviour of price discovery processes. Using the Indonesian sectoral spot price index, and the Bloomberg Markit iTraxx Asia and the CDX high yield index, we test for price discovery. Our findings suggest that pricing behaviour on Indonesian stock exchange is contributed by the credit risk market. We also note that our findings are robust to a different measure of credit risk.     

Trade credit use and competition in the value chain

Trade credit is a major source of finance in value chains in developed and emerging economies. Despite its ubiquitous use, this is one of the first empirical studies that analyzes why the use of trade credit varies along the value chain. We argue that competition faced by firms at different stages in the value chain and enforcement mechanisms that stimulate repayment jointly determine the use of trade credit. We distinguish two dimensions of competition, that is, rivalry and customer bargaining power. Competition may stimulate firms to provide trade credit to keep customers from switching to other suppliers. Yet, high contract enforcement costs relative to the value of the transactions, reduce the willingness to offer trade credit. We find empirical evidence showing that competition does not (strongly) influence the use of trade credit in the retail market, whereas it does in the markets for wholesalers and millers. We interpret these results as suggestive evidence that the retail, wholesale and milling market segments differ in terms of the enforcement costs involved in the provision of trade credit. Rivalry at the retail market segment makes switching easy for customers, even in case of default. As enforcement of repayment in this market segment is difficult and costly, trade credit appears to be a risky and less attractive marketing instrument for retailers. In contrast, in the wholesale and milling market segment, trade credit is widespread as stakeholders know each other, making informal mechanisms effective in supporting the enforcement of trade credit repayment.     

供应商-客户关系会影响企业的商业信用吗*——基于中国上市公司的实证检验

本文以我国上市公司为样本,实证检验了供应商-客户关系对企业商业信用融资规模和期限的影响。结果表明：供应商集中度越高,企业的商业信用融资规模越小,融资期限越短;当企业更容易获得银行贷款、企业所在地的产品市场发育程度更高时,供应商集中度与商业信用融资规模、融资期限之间的相关关系显著弱化。本文从新的视角丰富了企业战略与商业信用研究领域的文献,也为我国进行信贷市场及产品市场建设提供了证据支持。     

PURE INDICATOR OF RISK APPETITE

We study the concept of risk appetite, that is investors' willingness to buy risky assets. Market players and researchers have tried to find a proxy for it, notably by means of spreads in high yielding markets like credit or emerging markets. However, these measures might be biased because they hinge on series of prices that include market movements due to the re-pricing of both systemic and specific risks. Being macro factors that affect all the assets in the universe, risk appetite and risk aversion can only produce systemic risk re-pricing. We apply a methodology to correct this bias. We analysed emerging market debt capital markets and compute a systemic risk only indicator that enables one to ascertain more precisely periods in which risk appetite might have driven market returns. We find that from the end of 1997 to 2004 only about 30 per cent of the return of the EMBI+ might have been due to changes in risk appetite.     

Currency Options and Export-Flexible Firms

This paper examines the production and hedging decisions of a globally competitive firm under exchange rate uncertainty. The firm is risk averse and possesses export flexibility in that it can distribute its output to either the domestic market or a foreign market after observing the realized spot exchange rate. To hedge against its exchange rate risk exposure, the firm can trade fairly priced currency call options of an arbitrary strike price. We show that both the separation and the full‐hedging results hold if the strike price of the currency call options is set equal to the ratio of the domestic and foreign selling prices. Otherwise, neither result holds. Specifically, we show that the optimal level of output is always less than that of an otherwise identical firm that is risk neutral. Furthermore, an under‐hedge (over‐hedge) is optimal whenever the strike price of the currency call options is below (above) the ratio of the domestic and foreign selling prices.     

Capital Inflows,Exchange Rate Flexibility and Credit Booms

Historically, capital flow bonanzas have often fueled sharp credit expansions in advanced and emerging market economies alike. Focusing primarily on emerging markets, this paper analyzes the impact of exchange rate flexibility on credit markets during periods of large capital inflows. It is shown that bank credit is larger and its composition tilts to foreign currency in economies with less flexible exchange rate regimes, and that these results are not explained entirely by the fact that the latter attract more capital inflows than economies with more flexible regimes. The findings thus suggest countries with less flexible exchange rate regimes may stand to benefit the most from regulatory policies that reduce banks' incentives to tap external markets and to lend/borrow in foreign currency; these policies include marginal reserve requirements on foreign lending, currency‐dependent liquidity requirements and higher capital requirement and/or dynamic provisioning on foreign exchange loans.     

Currency crises and the stock market: empirical evidence for another type of twin crisis

We explore the dependency between currency crises and the stock market in emerging economies. Our focus is two-fold. First, the risk of a currency crisis rises as the foreign stake in the domestic stock market increases. Successful economies with high capital flows into their booming stock markets especially are prone to stock market-induced currency crises. Second, we apply the dividend growth model to show that stock markets crash in the run-up to a currency crisis. This new type of twin crisis is empirically tested by employing a logit framework using quarterly data for 33 emerging economies for 1994Q1–2007Q4.     

基于信用创造机制下金融衍生工具交易后风险分类及法律监管

金融衍生市场具有信用创造功能,其货币创造原理、抵押品、证券化程度以及对信用扩张能力与商业银行传统的信用创造机制相比有很大的区别。独特的信用创造机制放大了金融衍生工具交易后面临的市场风险、信用风险、流动性风险、法律风险,从而增加了系统性危机发生的可能性。重新构建我国金融衍生工具交易后监管的框架,是达到对系统性风险有效监控的必然选择。     

The January effect in the foreign exchange market: Evidence for seasonal equity carry trades

In this study, we investigate monthly seasonality in the foreign exchange market. Given the well-known recurrent higher returns in some month than in others in stock markets around the world, we consider it likely that a seasonal outperformance of a country’s stock market over another is associated with similar seasonal patterns in capital flows and exchange rates. A seasonal profit (carry trade) opportunity can be created by the simultaneous appreciation of a country’s currency and the outperformance of its stock market. By focusing on the world’s key currency pairs, the US dollar-Deutsche mark and the US dollar-euro, and by using a Markov-switching framework, we document persistent January and December effects in the foreign exchange market from 1971 to 2017. Analysis of the German-US stock returns differential and their bilateral capital flows reveal similar month effects in 65% of the whole sample.     

Exchange Market Pressure in the Central African Economic and Monetary Community (CAEMC) Area: Empirical Assessment of the Macroeconomic Determinants

ABSTRACT

The current empirical study contributes to the literature on the exchange market pressure. First we construct as proposed by Eichengreen, Rose, and Wyplosz [1996. Contagious currency crises: First tests. The Scandinavian Journal of Economics, 98 (4), 463–484], a continuous measure of EMP for the CAEMC franc zone, using quarterly data from 1985Q1 to 2012Q2. We then address the main macroeconomic determinants of this EMP.

We find that our main measure for EMP as well as two alternative measures of this index captures quite well episodes of crises of the CFA (XAF) currency. During the period of study, the common currency of the CAEMC countries experienced about four speculative attacks, with the one in 1993 ending with the devaluation of that currency in January 1994. The other attacks were warded off through reserves losses, as it is clear that the currency peg was maintained principally through changes in reserves. We also find that the GDP growth, the trade balance and the international oil price are the main contributors of EMP and therefore the most significant predictors of currency crises in the CAEMC area.     

经济伦理基础上的商业信用

商业信用是市场经济得以顺利发展的基础,而市场经济所独有的经济伦理对商业信用制度的构建有重大影响.经济伦理是商业信用的基础,商业信用是经济伦理的外在表现,法律是维护经济伦理和商业信用的制度保障.确立社会主义市场经济"共同富裕"、"利己的同时利他的双赢"及"秩序共同维护"的基本经济伦理思想,才能正确引导商业活动主体遵循市场经济规律和相应的法律制度,促进市场经济的发展.     

How strong is the global integration of emerging market regions? An empirical assessment

This paper attempts to evaluate the time-varying integration of emerging markets from a regional perspective based on a conditional version of the International Capital Asset Pricing Model (ICAPM) with DCC-GARCH parameters that allows for dynamic changes in the degree of market integration, global market risk premium, regional exchange-rate risk premium, and local market risk premium. Our findings reveal several interesting facts. First, the time-varying degree of integration of four emerging regions under consideration, satisfactorily explained by the regional level of trade openness and the term premium of US interest rates, has recently tended to increase, but these markets still remain substantially segmented from the world market. Second, the local market risk premium is found to explain more than 50% of the total risk premium for emerging market returns. Finally, we show that conditional correlations usually underestimate and overstate the measure of time-varying market integration. The empirical results of this study have some important implications for both global investors and policymakers with respect to dedicated portfolio investments in emerging markets and policy adjustments.     

Measuring and Optimizing Portfolio Credit Risk: A Copula‐based Approach*

In this work, we present a methodology for measuring and optimizing the credit risk of a loan portfolio taking into account the non‐normality of the credit loss distribution. In particular, we aim at modelling accurately joint default events for credit assets. In order to achieve this goal, we build the loss distribution of the loan portfolio by Monte Carlo simulation. The times until default of each obligor in portfolio are simulated following a copula‐based approach. In particular, we study four different types of dependence structure for the credit assets in portfolio: the Gaussian copula, the Student's t‐copula, the grouped t‐copula and the Clayton n‐copula (or Cook–Johnson copula). Our aim is to assess the impact of each type of copula on the value of different portfolio risk measures, such as expected loss, maximum loss, credit value at risk and expected shortfall. In addition, we want to verify whether and how the optimal portfolio composition may change utilizing various types of copula for describing the default dependence structure. In order to optimize portfolio credit risk, we minimize the conditional value at risk, a risk measure both relevant and tractable, by solving a simple linear programming problem subject to the traditional constraints of balance, portfolio expected return and trading. The outcomes, in terms of optimal portfolio compositions, obtained assuming different default dependence structures are compared with each other. The solution of the risk minimization problem may suggest us how to restructure the inefficient loan portfolios in order to obtain their best risk/return profile. In the absence of a developed secondary market for loans, we may follow the investment strategies indicated by the solution vector by utilizing credit default swaps.     

Foreign currency debt, risk premia and macroeconomic volatility

This paper studies the relationships between foreign currency debt, macroeconomic volatility, and risk premia in a model of a small open emerging market economy. The external value of the local currency is counter-cyclical, so that foreign currency debt requires larger repayments than local currency debt in bad states of nature. The level of foreign currency-denominated debts, therefore, affects the volatility of aggregate demand and by extension of the exchange rate. Exchange rate volatility is in turn an important determinant of the risk premium on local currency debt. Finally, this risk premium is a major factor in the choice of local versus foreign currency for emerging market borrowers. The mutual endogeneity of foreign currency debt, risk premia, and macroeconomic volatility creates important feedback effects in the economy: small increases in international risk aversion may entail large amplification effects on macroeconomic volatility since domestic borrowers substitute towards cheaper but riskier foreign currency debt finance.     

US Credit Crisis and Spillovers to Asia

We review key highlights of the global credit crisis. We then consider how financial turmoil in the largest advanced economies might be transmitted to East Asia. The focus is on foreign trade links, international capital flows, currency market pressures and mismatches, financial sector fragilities, and countercyclical monetary and fiscal policy actions. We introduce a set of vulnerability indicators and explore whether an ordinal ranking of East Asian economies according to these vulnerability indicators seems to be related to the cross-country differences in estimated slowdowns of economic growth during the crisis. Finally, we discuss how Asian economies might encourage the adoption of a stronger regulatory and supervisory framework in the USA and whether some Asian economies and the USA might pursue a more “balanced” growth strategy after the crisis.     

Stock Market‐Induced Currency Crises—A New Type of Twins

This paper explores the link between currency crises and the stock market in emerging economies. By integrating foreign stock market investors in a currency crisis model, we reveal a new fundamental inconsistency as a potential crisis trigger: since emerging economies' stock markets often have high returns, whereas central bank reserves grow slowly or decline, the amount of reserves foreign investors can deplete when selling their stocks and repatriating the proceeds grows over time and is considerably higher than funds that have been invested in the stock market. Capital withdrawals of foreign stock market investors can trigger currency crises by depleting central bank reserves, particularly in successful countries with booming stock markets and large foreign investment.     

货币国际化程度度量的简单方法和人民币国际化水平的提升

货币国际化程度的度量是非常重要的问题,有了客观科学的度量方法,才能对不同货币在不同时间段内国际化程度的变化有客观的判断和把握。货币国际化功能表现在多个领域,涉及很多数据和参数,准确而全面地度量货币国际化并不容易。然而,不管货币国际化功能在多少个领域有所发挥,皆会导致相应货币外汇交易的活跃,因此,货币在国际外汇市场的活跃程度可以间接地度量货币的综合国际化程度。基于该思路,本文建立了一个即简单又切实可行的方法来度量货币国际化,还可容易地计算出不同货币或货币组之间相对的国际化程度,对包括人民币在内的30个国际主要货币2007年和2010年的国际化程度进行度量,并计算出这些货币相对美元的国际化程度及人民币相对于其他货币的国际化程度。     

Private information and its origins in an electronic foreign exchange market

We study the risk of informed trading in an electronic foreign exchange market and test whether informed trading is driven by marketwide private information. Our framework is based on a structural microstructure trade model that measures the market makers' beliefs directly. Evidence of high concentration of informed trades is found to be inversely related to the overall 24-hour trading activity, i.e., early morning and late afternoon GMT rounds of trading involve the highest risk of informed trading. We structurally identify that the trades due to region-specific private information are dominant and explain between 5 and 25% of the variation in currency returns. In contrast, marketwide private information explains only about 1–5% of the variation in returns.