The performance of alternative futures buy‐write strategies

This study compares the performance of a conventional buy‐write (or covered call writing) and a dynamic buy‐write strategy. The conventional strategy generally enhances portfolio returns in low volatility conditions but underperforms the underlying cash asset in sharply rising markets. The dynamic strategy adjusts the moneyness of the option according to market conditions. The study extends Hill, J. M., Balasubramanian, V., Gregory, K., and Tierens, I. ( 2006 ) and tests how and to what extent market volatility and market direction affect the performance of these two strategies. The study finds that both strategies offer significant positive α, higher returns and lower standard deviations than the market. Consistent with prior research, the abnormal returns of the buy‐write strategies can be attributed to a volatility premium embedded in the options prices. The buy‐write returns from the Hong Kong market appear to be lower than those found in the U.S. and U.K. markets. The conventional buy‐write outperforms the dynamic strategy in both high and low volatility environments, and in sharply falling markets. However, by targeting exercise probability, the dynamic strategy provides a greater upside in sharply rising markets. © 2011 Wiley Periodicals, Inc. Jrl Fut Mark     

The World Trade Network

This study uses the tools of network analysis to graphically and analytically represent the characteristics of world trade. The structure of the World Trade Network is compared over time, detecting and interpreting patterns of trade ties among countries. The results show that the trading system has become more intensely interconnected, and trade integration at the world level has been increasing, but it is still far from being complete, with the exception of a few areas. At the same time, we observed a strong and increasing heterogeneity in countries’ choice of trade partners, with countries holding very different positions within the network, so that it is very difficult to talk of a representative country in the international trade system. Network indices were also used in a gravity model regression, adding to the explanatory power of the model. Furthermore, the analysis shows that trade policies do play a role in shaping the trade network, and that WTO members are more closely connected than the rest of the world. The structural difference between the extensive and the intensive margin of trade is also highlighted. An important feature of these results is that they pertain to the trading system as a whole, giving a unified view of the system characteristics and complexity.     

Predominant sources and contributors of influential business ethics research: evidence and implications from a threshold citation analysis

Influential or frequently cited business ethics research does not appear in a vacuum; our study reveals its predominant sources and contributors by discipline. By examining citations from articles published in three top business ethics journals (Journal of Business Ethics, Business Ethics Quarterly and Business Ethics: A European Review) over the period 2004–2008, we document that the preponderance of influential business ethics research comes primarily from the management faculty. In addition, management journals and management books are the predominant sources for influential business ethics research. Further, among the management fields, organizational behavior and organizational structure predominate leadership and strategy as the major subject areas for influential business ethics research, suggesting that this influential body of research is focused on a micro rather than on a macro context. These empirical results lend credence to the perception that there is a silo effect in influential business ethics research and suggest that business ethics research in a micro context might have permeated to the teaching of business ethics.     

Political Connections and Firm Performance in Chinese Companies

This study uses panel data analysis to examine the relationship between political connections and firm performance in Chinese firms from 2004 to 2008. We define firm‐level political connections and demonstrate a robust result for the positive relationship between political connections and firm performance. In addition, we integrate the effects of ownership structure, related‐party transactions and political connections into our analysis and continue to show a positive relationship. We show that political connections dampen the negative effect on firm value of related‐party transactions. Finally, we demonstrate channels through which the benefits of political connections are realized in terms of greater cash holdings, larger long‐term loans, lower financing costs, larger sales and lower sales costs. Our results indicate that state‐owned and non‐state‐owned enterprises use political connections equally effectively to enhance performance.     

Purchasing power parity in Brazil: a test for fractional cointegration

The purpose of this paper is to test the validity of the purchasing power parity (PPP) doctrine in Brazil. Historical data for the period 1855–1996 are considered. The period 1855–1990 is also analysed in order to compare the results with those obtained by Zini and Cati (1993) using the conventional cointegration analysis. This article uses fractional cointegration analysis, a flexible methodology which allows for more subtle forms of mean reversion. The tests performed are those of Geweke and Porter-Hudak (1983), and of Hurvich and Ray (1995). The critical values for both tests are generated by simulation because they are non-standard. The empirical results do not support the absolute PPP hypothesis but the relative PPP holds in the long run.     

Measuring Vertical Specialization: The Case of China

The explosive growth of Chinese trade may be due to international production fragmentation, but few have assessed these phenomena together, in part, because it is difficult to measure the vertical specialization (VS) of China's trade. Unique features of China's processing trade cause both identification of imported inputs and their allocation across sectors to vary by trade regime. This paper estimates the VS of Chinese merchandise exports, addressing these two challenges. A new method to identify Chinese imported inputs is developed, and used to calculate VS by sector and destination. VS estimates based on the official Chinese input–output table are contrasted with those based on a split table, capturing processing and normal exports separately. Last, the paper tests whether Chinese “export sophistication” can be explained by VS.     

Patterns and determinants of international fragmentation of production: Evidence from outward processing trade between the EU and Central Eastern European countries

Patterns and Determinants of International Fragmentation of Production: Evidence from Outward Processing Trade between the EU and Central Eastern European Countries. — In this paper we investigate a specific form of international fragmentation of production, that is, the form giving rise to international trade for reasons of processing. Data on textile and apparel trade between EU countries and Central European countries show that the magnitude of trade for reasons of processing greatly overshadows that of final trade. The industry appears to be affected by a process of international fragmentation whose understanding requires a new definition of the concept of comparative advantage. Our analysis suggests that this fragmentation is activated by labor cost differentials as well as by reasons of geographic and cultural proximity.     

The Influence of Firm's Size and International Experience on the Ownership Structure of Italian FDI in Manufacturing

The literature on foreign direct investment (FDI) has analysed the entry mode choice by multinational enterprises (MNEs) from several theoretical viewpoints. Nevertheless, previous studies have mainly focused on the behaviour of large and established MNEs while little attention has been given to small- and medium-sized firms.The paper aims at providing further empirical evidence on the role of firm size and international experience in influencing the ownership structure of FDI. The main hypothesis is that smaller firms, characterised by financial and managerial constraints, as well as firms lacking experience in managing foreign operations, suffer from a condition of adverse asymmetry in information costs, compared to their competitors. Therefore, they are forced to act prudently, minimising risk and thus preferring a less control arrangement of foreign subsidiaries.A binomial logistic model is developed with reference to manufacturing foreign direct investments undertaken by Italian firms in the period 1986–1993.