Why do Most Firms Die Young?

A model is developed to explain why most firms die in the first few years of trading. A risk averse entrepreneur with initial capital endowment faces a Brownian motion in net worth over time. To balance return (profits growth) and risk (variance of profits) she adopts a portfolio strategy, choosing market positioning to achieve an optimal combination of risk and return at each instant, given her financial and human capital endowments and attitude towards risk. Failure occurs when the firm’s value falls below the opportunity cost of staying in business. The resulting distribution of failure is Inverse Gaussian, implying, for specific parameter values, a positively skewed failure curve of the type observed in practice. In addition the model presents a novel-measure of management human capital (MHC) which implies that high MHC entrepreneurs will have higher absolute and marginal profits growth than low MHC entrepreneurs at given levels of risk.     

Financial connectedness of BRICS and global sovereign bond markets

The paper examines the financial connectedness via return and volatility spillovers between Brazil, Russia, India, China and South Africa (BRICS) and three global bond market indices represented by the United States of America (USA), European Monetary Union (EMU) and Japan for the period 01 January 1997 to 27 July 2016 (weekly data). We find that Russia followed by South Africa is the net transmitter of shocks within BRICS, implying that the risk arising from these markets may have an adverse impact on others in BRICS. However, China and India exhibit weak connectedness, suggesting that these markets may be useful for hedging and diversification opportunities in BRICS. The networks of pairwise spillover results further confirm this. Among global indices, China appears as highly interconnected with the USA. USA is the strongest transmitter of shocks to BRICS bond indices. The panel data results further confirm the significant determinants of net directional spillover. Thus, we can conclude that BRICS is a heterogeneous asset class even in the case of the bond market. India and China are the markets to look for better risk management strategies.     

Why has the United States continued to receive net investment income as a debtor country?

Why has the United States been able to keep receiving net international investment income as a debtor country? Several authors have pointed out that it is because US direct investments abroad have been generating better returns than have foreign direct investments in the United States. However, there is no consensus on why this is the case. This paper investigates this issue by conducting panel regressions to identify the main determinants of return on US direct investment abroad (RUSDIA) and those of return on foreign direct investment in the United States (RFDIUS), using data from 49 countries over the 1994–2013 period. Our findings suggest that the largest contributor to the RUSDIA‐RFDIUS gap is USDIA's advantage in the internalisation effect, which more than offset any negative age effect. The second largest contributor is income‐shifting activities by US‐controlled MNCs aiming to lower their overall tax payments. The third contributor is the negative age effect of inward FDI in the United States, which more than offset its weak internalisation effect. Altogether, those effects account for about 50% of the average return gap from 1994 to 2013. The contribution of the risk‐compensation hypothesis to the return gap is negligible.     

基于状态转移波动模型的金融市场动态风险测度研究

测度金融市场动态风险VaR的一个关键在于如何准确刻画金融市场收益波动率。引入马尔可夫状态转移的ARCH（Regime switching ARCH,SWARCH）模型。构建出基于状态转移波动模型的金融市场动态风险测度模型,然后运用其对中国大陆上证综指和伦敦金融时报100指数的市场风险进行测度,并运用Back-testing中的似然比率检验方法（Likelihood Ratio Test,LRT）对金融市场风险测度的准确性进行检验。实证结果表明,基于SWARCH的风险测度模型,不仅能够准确测度不同类型金融市场的动态风险,而且在测度金融市场大风险方面展现出同样具有优越的测度能力。     

Pricing and return strategy of online retailers based on return insurance

With the development of e-commerce, online shopping has become increasingly common, and as a result, consumers inevitably encounter the problem of returns. Therefore, pricing, return policy and return insurance strategy have attracted considerable research attention. In this paper, we construct four models to study pricing, return policy and return insurance strategy. We show that when a product's net residual value is greater than or equal to zero, online retailers should offer a money-back guarantee (MBG) return policy; however, they do not have to offer free return insurance because the latter does not increase their market share and profit, nor does it increase consumer surplus. The optimal strategy of insurance providers is unaffected by whether the policyholder is an online retailer or a consumer and should be neutral, which helps insurance providers gain the trust of policyholders. Consumers should buy products only when online retailers offer an MBG return policy; however, consumers should not do so if the online retailer provides free return insurance.     

分形分布在股票市场的应用研究

本文认为,对金融资产尖峰厚尾特性的描述,分形分布比正态分布更合适。我国股票市场收益率分布的特征指数不是正态分布,具有明显的尖峰态,我国股票市场具有较大的波动性;上海和深圳的两个股票市场收益率呈负偏,股票收益率分布右偏,呈现右厚尾特征;当置信水平为99%时,用分形分布拟合经验分布得到的风险系数高估了风险,用正态分布低估了风险,且分形分布的绝对偏差大于正态分布的绝对偏差,而当置信水平为90%时,分形分布对经验分布的风险系数拟合得非常好,正态分布对经验分布高估了风险,且绝对偏差比较大。     

权证发行对标的股票价格风险影响的实证研究

研究权证发行对标的证券价格风险的影响,对研究资本市场的有效性及权证定价等方面具有重要的意义。目前我国已经发行的备兑权证,运用资本资产定价模型(CAPM)和GARCH-M模型,探讨权证的发行时正股的无风险报酬、系统性风险(Beta)和总风险(报酬率波动性)是否有显著影响。实证结果表明,无论是认购权证、认沽权证,还是蝶式权证的发行对正股的无风险报酬、系统性风险的影响基本上均不显著,但对半数以上发行权证的股票的总风险有显著影响。抑制权证市场的投机性,发挥其本身应发挥的价格发现功能、促进股票的流动性、降低股价波动性等的功能,就必须从风险相互对冲的角度,循序渐进地大力发展权证等衍生产品的规模,促进衍生品市场健康、有序地发展。     

Risk,external adjustment and capital flows

This paper studies the process of external adjustment. I develop an open economy model with endowment and preference shocks that can account for the empirical behavior of real exchange rates, interest rates and consumption in the U.S. and Europe. The model includes cross border holdings of bonds and equity, and financial frictions that impede international risk-sharing. I find that external adjustment following endowment shocks predominantly takes place via trade flows, consistent with the intertemporal approach to the current account. In contrast, preference shocks that change investors' risk aversion induce adjustment via the trade and valuation channels; where the latter includes the effects of unexpected capital gains and loss on existing cross border holdings and changes in the expected future return differentials between foreign assets and liabilities. The model estimates imply that the valuation channel of external adjustment is more important for the U.S. than the trade channel. Consistent with this implication, I show that forecasts of future return differentials contributed most to the volatility of the U.S. net foreign asset position in the post Bretton-Woods era.     

基于极值理论的沪综指尾部风险度量

以沪综指为实证研究对象,利用AR-GARCH模型捕获沪综指对数收益序列中的自相关和异方差现象,获得近似独立同分布的残差序列,再利用极值理论中的POT方法对残差序列进行极值分析,并采用给出了极值分布的各参数极大似然估计,进一步计算置信水平下的VaR值,结果表明,根据AR-GARCH-POT方法所得的VaR对沪综指实际损失风险的刻画准确。而基于所得的VaR序列分析沪综指收益率的系统性风险历史波动趋势,结果发现系统性风险历史趋势存在先高后低,且自2006年后逐年升高的特征,目前阶段的总体性风险处于较高水平。     

The impact of cross border E-tailer's return policy on consumer's purchase intention

Based on the signaling theory, cue utilization theory and halo effect theory, this paper establishes a theoretical model of the impact of return policy leniency on consumer purchase intention in the context of cross-border e-commerce (CBEC). The model is verified by the experimental data. Moreover, the mediating role of perceived quality and perceived risk and the moderating effects of port of shipment and product traceability code are significant. The results show that in the CBEC scenario, when the online retailers adopt a lenient return policy, the consumers have higher perceived quality and lower perceived risk, which in turn leads to a higher intention to purchase; When a consumer purchases the product which ships from domestic bonded warehouse or a product without a product traceability code present, the effect of the leniency of return policy on perceived quality and perceived risk is stronger.     

Comparative Advantage and the Gains from Financial Trade: A Reappraisal

Emerging market crises have suggested that a national benefit‐cost assessment of external financial liberalisation could well prove unfavourable. This paper re‐examines the principle of comparative advantage in its application to financial trade to seek guidance on measures that might permit a fuller realisation of the potential benefits involved. Drawing a parallel with Balasubramanyam's work on the gains from FDI and international migration we distinguish between those arising in financial trade from the net transfer of capital, and those deriving from the contemporaneous exchange of financial claims or services of equivalent value. In the first interpretation a country's comparative advantage is manifested by its role in ‘intertemporal’ trade (as a borrower or lender). Our alternative emphasis is on the contractual risk‐return characteristics of the financial claims exchanged. This perspective is applied firstly to portfolio diversification gains arising from further international stock market integration. Secondly, price risk management for developing countries in international primary commodity trade is discussed. Both applications imply the need for significant institutional development but could realise approximately contemporaneous gains reminiscent both of those involved in merchandise trade and in the skills and product (or service) flows that Balasubramanyam has emphasised in relation to FDI and international migration.     

基于偏度的多期证券投资组合模型研究

在考虑资产收益率分布中正的偏度水平前提下,以风险价值VaR为约束条件,并引入非线性交易费用、税收等市场摩擦因素,建立以累积偏度最大为目标函数的多期投资组合优化模型,用罚函数法和PSO算法结合求解此模型,并给出实证分析。考虑到在买卖资产风险时交易费用等对投资收益的影响,投资者应该在每一期都对其资产组合进行调整分析,确保在每一期的开始都建立起符合需要的最优资产组合,这对投资者的连续投资行为具有一定的指导意义。     

Multifractal Detrended Fluctuation Analysis of Return on Bitcoin*

We revisit the issue of market efficiency of Bitcoin, which is an important part of the new financial technology (FinTech), by analyzing the Bitcoin returns using two recently developed analytical techniques called bipower variation method and Multifractal Detrended Fluctuation Analysis (MF‐DFA). MF‐DFA allows us to analyze the return series in ways not possible using a monofractal analytical techniques such as detrended fluctuation analysis (DFA) and R/S method. The bipower variation method suggests that the Bitcoin returns are efficient and contain some large finite jumps. Using MF‐DFA, we find that the Bitcoin returns are multifractal and, therefore, the Bitcoin market is not efficient. By carrying out further analysis, we also find that the multifractility and inefficiency are caused by the autocorrelated returns as well as extreme returns.     

浅谈个人所得税税收筹划

个人所得税纳税筹划是一项技术性、政策性要求都很强的工作,适当筹划能够增加税法知识,增强纳税意识,维护纳税人利益。并不断完善国家政策和法规。通过工资薪金与劳务报酬的筹划、年终奖金的筹划、利用税收优惠筹划等方面来实现个人所得税节税的目的。     

论我国金融配置效率的改进与企业债券市场的发展

本文利用金融学基础理论—市场完全性原理对我国金融体系资源配置低效率进行剖析,认为其根源在于市场的极度不完全,有限的金融工具对应日益扩大的风险空间,风险与收益严重不对称,金融风险不断积聚。因此应发展能够通过风险与收益的匹配进行资源有效配置的资本工具特别是企业债券,以降低我国经济运行中的潜在金融风险。针对我国区域经济不平衡的现实,可考虑通过建立区域债券交易中心来推动我国企业债券市场的发展。     

Retailing and the period leading up to the Great Recession: a model and a 25-year financial ratio analysis of US retailing

Today, more than ever, retailers need to analyze the key solvency (liquidity) and efficiency financial ratio measures that affect how well their firms perform and to engage in long-term activities that will lead to improved results. Clearly, the recent ‘Great Recession’ has had a significant negative impact on retailers worldwide. Yet, an important question remains largely answered: Was the retail industry a major contributor to the events leading up to the economic crisis or was it an affected bystander shaken by the recession? This paper addresses the question for US retailing, the largest retail economy in the world. Although there has been considerable research on some aspects of the performance of the industry and individual firms, no prior studies exist that comprehensively examine the financial ratio performance of the totality of US retailing over time. Here, the financial performance of US retailers in 54 different sectors is analyzed for the 1982–2007 period using a model and data derived from Dun & Bradstreet's annual Industry Norms & Key Business Ratios. Results show that for many financial measures – such as the current ratio, liabilities to net worth, return on sales (profit margin), return on assets, financial leverage, and return on net worth – US retailing's financial performance has been in a steady decline for decades. The model introduced here is largely validated.     

Dynamic return predictability in the Russian stock market

This paper explores whether the relevance of a conditional multifactor model and autocorrelation in predicting the Russian aggregate stock return fluctuates over time. The source of return predictability is shown to vary considerably with information flow. In general, predictability of the Russian stock market return is at a high level. Autocorrelation increases during periods of low information flow. During periods of high information, conditional exposure to the local market risk and changes in oil price influence the expected return on the Russian stock market. The lagged global stock market factor and currency returns have insignificant influence.     

Pay-performance sensitivity and risk-taking behaviors: Evidence from closed-end funds

The pay-performance sensitivity (PPS) of managers of closed-end funds is explicitly specified in their contracts as the marginal rate of the funds' net asset value. Using a sample of US closed-end funds from 2006 to 2009, this paper investigates the relationship between the PPS and risk-taking behaviors of fund managers. After controlling for endogeneity, we find that fund return volatility and fund PPS positively determine each other. Furthermore, the positive relationship is more pronounced for closed-end funds engaging in alternative investments or in emerging markets.     

基于美德经验的极端风险溢出效应检验

本文运用GARCH模型和主成分分析方法,从分析极端风险溢出机理出发,实证研究国际金融危机前后美国股票市场、债券市场及金银市场对德国股票市场的风险溢出效应,发现标准普尔500指数对德国法兰克福DAX指数日收率不仅存在极端风险溢出效应,且在金融危机前后的三个时期都存在风险溢出效应;而美国13周国债指数日收益率对德国法兰克福DAX指数日收益率在金融危机前后的三个时期都不存在风险溢出效应;费城金银指数的日收益率只在金融危机时期对德国法兰克福DAX指数日收益率产生风险溢出效应,即仅存在极端风险溢出效应。     

Revisiting the risk/return relations in the Asian Pacific markets: New evidence from alternative models

This paper examines the risk/return relations in eleven Asian Pacific stock markets and explores if the 1997 Asian financial crisis significantly influenced market behavior in the region. We use a plain vanilla time-series regression approach as well as various GARCH models. Although results significantly vary across model specifications, the overall evidence from GARCH models supports a significantly positive risk/return relation in several markets but only prior to the Asian financial crisis. These results accord with Glosten et al. (1993) and Harvey (2001) and suggest that the relative risk aversion is sensitive to both model specifications and structural breaks.