Pro-cyclical effect of sovereign rating changes on stock returns: a fact or factoid?

This article examines the effect of changes in sovereign credit ratings and their outlook on the stock market returns of European countries at different phases of business cycle. Using standard four-factor model, it records a significant average marginal effect of credit rating announcements on stock market returns. Both magnitude and significance of the effect vary with business cycle and across announcement types. However, we do not find evidence of pro-cyclical effect of sovereign rating and outlook changes on stock returns. Our results show that stock markets react more negatively to rating downgrades in recovery phases and more positively to rating upgrades in contractionary period. Both results are statistically significant and robust to various sensitivity tests.     

Uncertainty and investment evidence from a panel of Chinese firms

Using data from various Chinese companies for the period 1994–2005 and applying GMM (System) technique, we report some stylized facts regarding the link between uncertainty and investment, where uncertainty is measured as the volatility of daily stock market returns. Controlling for the short- and long-run investment dynamics, we discover important effects of measured uncertainty on firm-level investment. Our study consistently indicates a positive and statistically significant effect of uncertainty on the company investment. Further more the macroeconomic and firm-specific components of uncertainty also have a significant positive effect on their own. Higher risk perception leading to higher investment, and in turn stronger aspirations of reinvestment.     

The relation between asset growth and the cross-section of stock returns: Evidence from the Chinese stock market

This study examines the effect of firm investment on stock returns by using data on the Chinese stock market. We find that stocks with higher investment experience lower future returns and there is an obvious investment effect in the Chinese stock market. The investment effect is stronger for firms that have higher cash flows, lower debt or for state-owned firms. We further explore the relation between investment and returns over the 3 years around portfolio formation. The results show that the high investment firms earn higher returns than low investment firms before portfolio formation; however the high investment firms earn lower returns than low investment firms after portfolio formation, such evidence is supportive of investor's overreaction explanation. Additionally, the stock returns don't necessarily decrease after investment, and the stock returns don't significantly positively correlate with firm profitability or book-to-market, so the result don't support risk-based explanation. Overall, both our portfolio sort and two-stage cross-sectional regression analysis show that behavioral finance theories are better than risk-based theories in explaining the investment anomaly. Evidence from the Chinese stock market provides a useful perspective to understand the debate on the investment anomaly.     

Bond rating changes and stock returns: evidence from the Spanish stock market

This study analyzes the effect of corporate bond rating changes by international agencies on stock prices. This topic has not yet been analyzed for the Spanish stock market, despite the growing importance of ratings in Spanish financial markets. On an efficient market, rating changes will only have an effect if they contain some new information. The results from an event study indicate that rating actions cause significant negative abnormal returns in issuing firms around the date of the announcement. This evidence indicates an informational effect related to downgrades, which supports the hypothesis that credit rating agencies provide information that may reduce the asymmetric information problem between firms and investors. In the case of upgrades, our results are compatible with a redistribution of wealth between bondholders and owners or with the reputation hypothesis.      

中国股市价值反转投资策略有效性实证研究

本文以中国深沪A股股票市场为考察对象 ,分析了价值反转投资策略的有效性。作者通过实证分析发现 :在中国深沪A股股票市场上 ,以帐面价值与市场价值比 (B M)、B M GS等指标构造的价值反转投资策略可以产生显著的超额收益率 ,并且其显著程度因持有期不同而不同。接着 ,作者利用CAPM模型、Fama French三因素模型并引入了协偏度 (coskewness)和协峰度 (cokurtosis) ,构造出多风险因子模型来解释价值反转投资策略超额收益率。我们发现 :在经过传统风险因素调整后 ,价值反转投资策略效果依然明显 ;CAPM模型无法解释价值反转投资策略超额收益率 ;Fama French三因素模型对价值反转投资策略超额收益率的解释能力最为显著 ,但对于有些价值投资策略 ,在Fama French三因素基础上加上协偏度和协峰度因子后 ,模型的解释能力有所提高     

Overflow effect of credit rating announcements on stock exchange based on event study

This study is aimed to identify the impact of credit rating announcements on the stock returns in stock markets and for this purpose, four different sectors of Pakistan stock exchange were selected and from each of these four sectors, different business organizations were selected, i.e. total 32 business organizations were selected. The credit rating announcement data were collected for these 32 business organizations belonging to four different sectors. Totally 101 credit rating announcements were selected and the time period for which the credit rating warnings were selected include last three years period, i.e. from 2014 to 2016. The collected data were analysed by calculating abnormal returns for each of the selected security and average abnormal returns, and cumulative average abnormal returns were calculated for four different sectors. Event study methodology was applied, and t-test and t-stats value were calculated and results were analysed on the basis of t-statistics. The results of analysis identified that credit rating announcements have a significant impact on stock prices and investors and other market participants are earning abnormal returns during two-day period after the announcements are made. In addition, these abnormal returns were either negative or positive, depending upon the nature of credit ratings announced. If the credit rating announced was upgraded, investors enjoyed positive abnormal returns while in case when credit rating announcements were downgraded, then investors bear negative abnormal returns. Finally, the findings of the study identified the applicability of random walk hypothesis on the Pakistan Stock Exchange and Pakistan Stock Exchange confirms the efficient market hypothesis with its semi-strong form of efficiency.     

Brand capital and firm value

We study the role of brand capital – a primary form of intangible capital – for firm valuation and risk in the cross section of publicly traded firms. Using an empirical measure of brand capital stock constructed from advertising expenditures accounting data, we show that: (i) firms with low brand capital investment rates have higher average stock returns than firms with high brand capital investment rates, a difference of 5.2% per annum; (ii) more brand capital intensive firms have higher average stock returns than less brand capital intensive firms, a difference of 5.1% per annum; and (iii) investment in both brand capital and physical capital is volatile and procyclical. A neoclassical investment-based model in which brand capital is a factor of production subject to adjustment costs matches the data well. The model also provides a novel explanation for the empirical links between advertising expenditures and stock returns around seasoned equity offerings (SEO) documented in previous studies.     

Financial liberalization,private investment and portfolio choice: Financialization of real sectors in emerging markets

Using firm level panel data, we analyze the impacts of rates of return gap between financial and fixed investments under uncertainty on real investment performance in three emerging markets, Argentina, Mexico and Turkey. Employing a portfolio choice model to explain the low fixed investment rates in developing countries during the 1990s, we suggest that rather than investing in irreversible long-term fixed investments, firms may choose to invest in reversible short-term financial investments depending on respective rates of returns and the overall uncertainty in the economy. The empirical results show that increasing rates of return gap and uncertainty have an economically and statistically significant fixed investment reducing effect while the opposite is true with respect to financial investments.     

国家主权信用评级、跨国传染与股票市场回应?--基于全球48个经济体的事件研究

掌握主权信用评级变动的市场影响及其传染机制,对于投资者、国家金融安全及政府采取应对措施来说都意义重大。文章采用事件研究法,以1990-2013年全球48个经济体发生的评级事件和每日股指收益率数据为样本,实证研究了事件国评级变动对非事件国股票市场的影响及其传染渠道,结果表明：(1)评级下调会对股票市场产生显著为负的超额收益,但评级上调产生的超额收益不显著;(2)股票市场可以提前预测评级下调事件,但不能预测评级上调事件;(3)季风效应对评级调整的市场传染有一定的解释力;(4)净传染效应基本不显著,这说明评级事件的市场传染应该有经济基础,而不是由投资者心理预期这类非基本面因素造成的;(5)溢出效应可以较好地解释评级的市场传染,是评级变动影响市场及传染的主要渠道。文章的结论深化了我们对评级调整如何影响股票市场及其传染渠道的认识,也为中国防范国外主权信用评级变动风险提供了有益启示。     

GLOBAL OIL PRICES,OIL INDUSTRY AND EQUITY RETURNS: RUSSIAN EXPERIENCE

The purpose of this paper is to promote a greater understanding of the implications of oil price changes on the equity investment climate in Russia. A dynamic bivariate exponential general autoregressive conditional heteroscedastic (EGARCH) analysis shows that global oil price returns have significant impact on Russian equity returns and volatility. At the same time, a dynamic correlation analysis highlights Russia's importance in the international geopolitical scene and its positioning as a reliable supplier of oil during times of turmoil in the Middle East. There are a number of challenges, however, that threaten to slow down the performance of the oil industry in Russia and compromise the country's future economic growth and stock market performance.     

Dimensions of international expansions by US firms to China: Wealth effects,mode selection,and firm-specific factors

China's recent efforts to attract foreign investment have been viewed favorably by US firms, who have explored a variety of strategies for expanding to China. This paper provides evidence related to a comprehensive set of strategies used by US firms to expand to China. For the 302 announcements of expansion by US firms into the Chinese market, several firm-specific factors are found to affect both the choice of mode entry and the reaction of investors to the announcement of the expansion. The results suggest that firms with a high investment in proprietary assets prefer foreign direct investment (FDI) modes to non-FDI modes, as do firms with high levels of geographic diversification. Firms entering the Chinese market utilize non-FDI modes, while those who have established a presence in China prefer FDI modes. The reaction of the stock market to expansions to China is positive; average excess returns of 0.75% are observed for the two days surrounding the announcement. Both FDI and non-FDI categories of expansion have statistically significant excess returns. Analysis by mode of expansion shows that expansions through joint ventures (JVs) and contracts are the most desirable alternatives. Other modes of expansion do not result in significant excess returns. Finally, a firm's prior financial performance has a significant influence on its ability to profitably expand to China.     

Parental nurturing and adverse effects of redistribution

This paper suggests that if parental nurturing is a dominating force in human capital formation then income redistribution may not promote economic growth. In particular, if, consistently with empirical evidence, parental human capital complements investment in a child’s education and yields increasing returns in the intergenerational production of human capital, income redistribution may have an adverse impact on the growth rate of average human capital. Redistribution shifts resources towards the less educationally-productive families and thus in the presence of credit markets imperfections and increasing returns, it reduces the aggregate level of investment in human capital. Moreover, if the degree of increasing returns is sufficiently large to produce sustained growth, this adverse effect on human capital formation may outweigh the conventional beneficial effects of redistribution that arises from the interaction between a production technology exhibiting diminishing returns and credit market imperfections.     

Global imbalances and asymmetric returns to US foreign assets: fitting the missing pieces of the US balance of payments puzzle

The issue of whether the US earns a persistently higher return on its foreign direct investment (relative to returns to foreign-owned direct investment in the US) has received considerable attention but little closure in the ‘global imbalances’ debate. Measuring the rate of returns to US direct investment abroad and foreign direct investment in the US we find higher returns to US foreign direct investment relative to its foreign counterparts in the US. Given the evidence indicating higher returns to US direct investment overseas, we link the irresolution in the contemporary literature regarding the existence of these returns to the unsettled debate over the origin of global imbalances. Reviewing the macro-financial literature on global imbalances, we find a failure to acknowledge that the US current account deficit is, in part, the outcome of transnational production networks in a global economy under-pinned by dollar hegemony. Given the growth in US multinational supply chains, we argue that the US trade deficit is consistent with asymmetric returns to US direct investment and that the sustainability of these return differentials rests on the stability of the status quo.     

Parental background,educational attainments and returns to schooling and to marriage: the case of Israel

This paper investigates the effect of family background attainments and on returns to own and wife's schooling, for Jewish males Israel. Three dimensions of paternal background are referred to: father's education, the prestige of the father's occupation, and whether the father is of a western origin (an advantage in the western-oriented Israeli society). For each of these types of segmentation it is found that both the level of and the returns to own and wife's schooling (after some years of marriage) are higher for those coming from a more favourable background.

These empirical findings are consistent with an investment in schooling model in which differences in demand (productivity of own and wife's schooling) vary more than differences in supply of investment funds.     

科技投入超效率测度的偏DEA分析与资本驱动的区域协调

现有科技活动效率研究存在异质性缺陷，导致无法深入分析引发效率差异的区域演进成因。应用超效率测度理论结合偏DEA视窗法，实证分析2010—2019年全国内地30个省（市）科技活动效率的动态演化进程，并从科技资本投入视角构建面板数据方程，考察不同资本类型驱动下我国科技投入效率空间溢出的直接效应与间接效应，同时，应用Moran′sI指数衡量各省（市）科技活动效率与空间集聚关联性。研究表明：近十年来我国科技活动效率整体呈现快速上升—趋势减缓—明显下降的发展态势，其中，东北地区效率饱和，投资冗余明显；华北地区效率偏低，高效率省（市）带动能力突出；华东和中南地区效率呈螺旋式上升，区域内省（市）组团差异明显；西北地区与西南地区效率偏高，但省（市）分化差异明显。从整体看，我国科技活动效率溢出能力显著，政府资本与企业资本对总效率溢出呈正向影响；外来资本对总效率溢出无明显影响，且资本效应的空间关联性不显著，绝大多数省市的科技活动效率提升处于资本弥补阶段，极少省市处于资本驱动状态。     

Financial Liberalization and Allocation of Capital: Dark Side of the Moon

Although it is well established that financial liberalization leads to a positive ‘quantity effect’ with higher levels of investment, it remains uncertain whether it also improves the efficacy with which such investment funds are allocated. This paper contributes to this sparely researched aspect of liberalization (‘quality effect’) by carefully examining if the financial reforms in India have led to an improvement in the allocation of resources. Since one of the premises of better allocation is that funds are channelled to firms with higher marginal returns to capital (measured by Tobin’s Q), we propose three unique measures to track the efficiency of resource allocation: (a) dispersion-based measures; (b) the allocative efficiency index; and (c) the relative value of allocation. Contrary to the prevalent assumption that financial liberalization leads to higher capital allocation efficiency, this study’s findings could not establish a direct correlation between the opening up of markets and higher allocation efficiency, except for the latter part of the reform period. Further, this paper draws attention to the greater misallocation of funds in the post-reform period, as the increase in funds availability leads to excess capacity creation in some industries without consideration of the need for concurrent return or demand. The authors of this paper recommend that any financial liberalization needs to be accompanied by the setting up of institutions for corporate control, particularly in an emerging market like India.

     

Human capital, economic growth, and regional inequality in China

We show how regional growth patterns in China depend on regional differences in physical, human, and infrastructure capital as well as on differences in foreign direct investment (FDI) flows. We also evaluate the impact of market reforms, especially the reforms that followed Deng Xiaoping's “South Trip” in 1992 those that resulted from serious hardening of budget constraints of state enterprises around 1997. We find that FDI had a much larger effect on TFP growth before 1994 than after, and we attribute this to the encouragement of and increasing success of private and quasi-private enterprises. We find that human capital positively affects output and productivity growth in our cross-provincial study. Moreover, we find both direct and indirect effects of human capital on TFP growth. These impacts of education are more consistent than those found in cross-national studies. The direct effect is hypothesized to come from domestic innovation activities, while the indirect impact is a spillover effect of human capital on TFP growth. We conduct cost-benefit analysis of hypothetical investments in human capital and infrastructure. We find that, while investment in infrastructure generates higher returns in the developed, eastern regions than in the interior, investing in human capital generates slightly higher or comparable returns in the interior regions. We conclude that human capital investment in less-developed areas is justified on efficiency grounds and because it contributes to a reduction in regional inequality.     

技术进步对外资进入影响的实证分析

随着全球经济形势的飞速变革,科学技术水平对经济发展的影响作用愈加明显.通过对中国各省市面板数据进行实证分析,以探讨中国不断提高的技术水平对外资进入的作用方向.研究结果发现:技术水平对外资进入具备显著的抑制作用,且技术水平越高其对外资进入的抑制作用越强,两者具备显著的正相关关系,表明随着中国先进技术水平的不断提高对于外资的依赖程度将不断降低.研究结论对提升中国外资进入质量及完善外资引进政策有一定帮助.     

资本要求、“多而不倒” 救助与系统性风险

本文从银行之间资产回报相关性的角度研究系统性风险，通过构建理论模型考察了存在“多而不倒”救助时资本要求对系统性风险的影响，并且以11个国家（地区）2006-2012年的相关数据为样本进行实证检验。研究结果表明，一定条件下“多而不倒”救助是监管者的最优选择，然而当存在这种“事后”最优政策时，资本要求的提高可能会通过影响银行“事前”投资决策的方式扩大银行之间的系统相关性，提高系统性风险隐患。这一效应在金融自由化程度较低的国家表现得更为显著。中国的资本监管改革应注意与金融市场化改革相协调。     

不同监督情境下政府创新支持对企业研发投入的影响——基于农业上市公司的实证研究

近年来,“三农”问题受到极大关注。为了应对外部资源、环境、科学技术等多重压力对农业升级与发展的影响,政府出台了诸多政策支持农业企业的技术研发与创新。本文从政府干预视角分析政府补助和税费返还两种形式的政府创新支持政策对农业企业研发投入的影响,重点分析机构投资者与大股东参与公司内部治理以及社会审计事务机构参与公司外部治理这两者所发挥的不同监督作用。研究发现：第一,不同形式的政府创新支持（政府补助和税费返还）对农业企业研发投入的影响并不一致。政府补助产生替代效应,税费返还则产生互补效应。第二,持股监督（机构投资者和大股东的持股比例上升）能增强政府补助对农业企业研发投入的替代效应,也能增强税费返还对农业企业研发投入的互补效应。第三,审计监督（社会审计事务机构的审计意见）会减弱政府补助支持对农业企业研发投入的替代效应,也会减弱税费返还对农业企业研发投入的互补效应。本文的研究发现为政府制定适宜的创新支持政策,以及合理发挥持股监督与审计监督的内外部治理作用,提供一定的决策依据和理论支持。