The Breakdown of Idiosyncratic Volatility Into Expected and Unexpected Components and Its Effects on Stock Returns in Brazil

Based on studies of idiosyncratic volatility developed in the recent literature, this study analyzes its relation with expected returns through the breakdown of idiosyncratic volatility in the Brazilian stock market and presents evidence of the importance of expected idiosyncratic volatility for asset pricing. We study the impact of the expected and unexpected components of idiosyncratic volatility on the returns of shares listed on the BOVESPA between 2004 and 2011. The results show a strong positive and significant relation between expected idiosyncratic volatility and returns. This evidence is highlighted when we use unexpected idiosyncratic volatility to control for unexpected returns. Additional robustness tests, controlling for size and momentum effects, also have positive and significant coefficients, corroborating previous findings.     

AN ATTEMPT TO EXPLAIN DIFFERENCES IN ECONOMIC GROWTH: A STOCHASTIC FRONTIER APPROACH

Total factor productivity (TFP), factor accumulation, and growth are analysed for a panel of 40 countries in 2001–11. TFP growth and technical inefficiency are estimated using a stochastic frontier model. Environmental variables are found to have an important role in explaining differences in inefficiency across countries. Over 2001–11, the general improvement in technical efficiency of countries is almost outweighed by technological regress. Results indicate that differences in factor accumulation between OECD and emerging economies are more important than differences in TFP change to explain differences in economic growth. Results also indicate negative and significant random shocks for the OECD countries.     

Marketing and the law

Marketing decisions are particularly vulnerable to legal rulings made in both the courts and the legislatures. The effective management of those legal implications challenges the modern marketing professional. Grasping marketing’s overall legal environment, including its governing case law, regulatory statutes and future trends, is essential. This review will provide analysis of recent court cases and legislation with particular emphasis on creatively assisting the marketer’s management of the legal factor.     

Does geography matter? Firm location and corporate payout policy

We investigate the impact of geography on agency costs and firm dividend policies. We argue that remote firm location increases the cost of shareholder oversight of managerial investment decisions. We hypothesize that remotely located firms facing free cash flow problems precommit to higher dividends to mitigate agency conflicts. We find that remotely located firms pay higher dividends. As expected, the effect of geography on dividends is most pronounced for firms with severe free cash flow problems. Further, remotely located firms rely more on regular dividends instead of special dividends or share repurchases and decrease dividends less often.     

Property Rights Protection of Biotechnology Innovations

Protection of intellectual property embedded in self-replicating biological innovations, such as genetically modified seed, presents two problems for the innovator: the need for copy protection of intellectual property and price competition between new seed and reproduced seed. We consider three regimes in two periods with asymmetric information: short-term contracts, biotechnological protection, and long-term contracts. We find that piracy imposes more intense competition for seed sales than does durability alone. Technology protection systems yield highest firm profit and long-term contracts outperform short-term contracts. Farmers prefer, in order, long-term, short-term, and biotechnical protection. Depending on monitoring cost, long-term contracts may be socially preferred to short-term contracts, with both preferred to biotechnical protection.     

商务休闲装的终极经典

每个季节总有大大小小的新衣发布会预示着这季的流行和明年的趋势。虽说每季的流行元素或多或少地进行着变化，但总有些经典造型经得起岁月的验证，不断被穿衣人证明搭配的精妙。     

Differing degrees of labour market regulation in Europe

The high density of labour market regulations is often quoted as an explanation for the unfavourable employment trends in most European countries compared to other nations. These regulations vary considerably from country to country, however. Which are the most important areas of regulation? How is the regulation of the German labour market to be judged compared to that of other European countries?