Tax system and informal economy: a cross-country analysis

This article analyses determinants of informal economy. By using qualitative aspects of tax systems, first, we create a ‘Smithian’ tax system index based on Adam Smith’s four maxims. Then, using this index and other control variables, we study determinants of informal economy. We use unique panel data set that is constructed by using various sources. After taking into account the endogeneity of tax burden and GDP per capita, our results show that ‘Smithian’ tax system index does not significantly affect informal economy. Our results suggest that rule of law, complexity of a tax system and tax burden affect informal economy negatively, while labour market regulations affect positively.     

Reflections on Private Water Supply: Agency and Equity Issues

In the second of the two articles, the authors reflect on and extend their earlier work by describing recent trends in water privatization, drawing important lessons from cases where privatization efforts have failed, offering suggestions about the way privatized firms can be successfully monitored, and addressing the popular argument that “fairness” demands that water be distributed by public firms at a zero (or heavily subsidized) price.     

Financing enterprise development in sub-Saharan Africa

This paper examines some critical gaps in the financial infrastructurein sub-Saharan Africa, which have contributed to the poor performanceof productive investment by private agents. It first analysesthe performance of financial systems, encompassing both formaland informal financial sectors, in relation to the changingpolicy environment, and key features of the financial marketstructure. It then identifies those gaps in financial servicesthat have been particularly detrimental to private investment,enterprise growth and transformation. Finally, the paper considerspolicy implications drawn from East Asian experiences with respectto financial policies, institutional arrangements and marketintegration measures for financing enterprise development.     

International Trends in Economics Degrees During the 1990s

Australia, Canada, Germany, and the United States experienced a substantial decline in undergraduate degrees in economics from 1992 through 1996, followed immediately by a modest recovery. This cycle does not conform to overall degree trends, shifts in the gender composition of undergraduate populations, or changing interests of female students in any of the four countries. There is no evidence that changes in the “price” of a degree to students, tightened marking standards or degree requirements, or changes in pedagogical methods caused the cycle.

Jobs for economics graduates declined in the United States between 1988 and 1990 and thereafter recovered. With a two-year recognition lag, the pattern of employment prospects fits the U.S. slump in economics degrees perfectly. Unfortunately, employment patterns in the other three countries are inconsistent with the degree cycle. The explanation that fits the economic degree pattern best is interest in business education.     

Effective regulation versus tacit collusion in the long-distance market: an empirical analysis

Regulatory decisions often must be made in an atmosphere of uncertainty, and arguments presented by the affected parties frequently add to, rather than resolve, that uncertainty. Here, we examine several of the deregulatory decisions affecting the long-distance market that were rendered by the FCC over the two-decade period following the divestiture of AT&T. Our purpose is to provide empirical evidence relevant to some of the arguments regarding market conditions that were presented during that period. Findings suggest that some of the more prominent allegations are not supported by the data.      

BUDGET DEFICITS, DOMESTIC INVESTMENT, AND TRADE DEFICITS

This paper summarizes recent empirical studies on the effects of budget deficits on interest rates, investment, and trade deficits in the United States. It also reports new evidence on the effects of budget deficits on investment and on trade deficits for the 1980s. The results support the view that budget deficits crowd out domestic investment and increase trade deficits.     

A critical evaluation of alternative methods and paradigms for conducting mediation analysis in operations management research

Mediation as a theory testing approach has witnessed considerable adoption among Operations Management (OM) researchers. Although mediation-testing methods have evolved tremendously in the past decade, their dissemination in the OM field has not seen parallel growth. These advanced techniques facilitate the testing of existing and complex hypotheses in a more precise manner. With the intent of critically evaluating existing and alternative methods for conducting mediation analysis needed to support sophisticated empirical research, this paper first reviews OM studies that tested for mediation in the past eleven years (2002–2012) from top-tier OM journals. Four commonly used mediation approaches were identified. Based on principles of good theory building, type of mediation model, and properties of empirical data, we evaluate the existing methodologies and make recommendations on how to improve the rigor of OM mediation testing. Using published OM studies in top journals as examples, we then illustrate the relevance and advantages of these recommendations, as well as their ease of use. Furthermore, we empirically show that more robust and insightful results can be achieved by adopting these techniques, which in turn have the promise of leading to better theory building and testing in the field of operations management.     

加快推进我国对外经济发展方式转变的战略选择

我国经济发展取得了举世瞩目的成就,但是按照现行的经济发展方式很难实现我国经济长期稳定的发展,加快转变对内和对外经济发展方式已经成为我国经济社会领域面临的一场深刻变革。本文认为,要加快推进我国对外经济发展方式的转变,就要构建和实施我国对外经济新的国家发展战略,包括以超比较优势为核心的梯形对外货物贸易发展战略、以比较优势变迁为背景的雁型对外服务贸易发展战略、以超所有权优势为重点的多方位对外直接投资发展战略、以调整结构为主线的质量型引进外国直接投资发展战略、以渐进的人民币国际化为中心的对外金融发展战略、以防范风险为目标的宏观审慎金融监管体系。通过对外贸易、直接投资、对外金融发展战略的相互作用,通过对内和对外经济发展方式转变的相互影响,可以有效地促进我国经济持续发展。     

Central bank intervention and foreign exchange volatility

This paper provides additional empirical evidence on the topic of the effectiveness and the impact of Federal Reserve intervention on U.S. exchange rates. Using a daily measure of exchange rate intervention in the yen/dollar and mark/dollar exchange markets for the period January 3, 1985 to March 19, 1997, this paper finds a statistically significant impact of intervention on spot rates. A generalized autoregressive conditional heteroskedasticity exchange rate equation is used to measure the impact of intervention on exchange rate uncertainty. This study finds that intervention is associated with a significant increase in the interday conditional variance (uncertainty) of both bilateral spot exchange rates. This supports the view of Friedman and Schwartz that exchange rate intervention serves to destabilize the foreign exchange market by introducing additional levels of exchange rate uncertainty.