采购:绿色战略成功的关键

绿色采购并不是对目前采购运作方式的背离,它是一种延续。如今,迫于来自员工、客户、消费者以及供应链合作伙伴的压     

Export surges

How can developing countries stimulate and sustain strong export growth? To answer this question, we examine 92 episodes of export surges, defined as significant increases in manufacturing export growth that are sustained for at least 7 years. We find that export surges in developing countries tend to be preceded by a large real depreciation, which leaves the exchange rate significantly undervalued. In contrast, in developed countries, the role of the exchange rate is less pronounced. We examine why the exchange rate is important in developing countries and find that the depreciation is associated with a significant reallocation of resources in the export sector. In particular, depreciation stimulates entry into new export products and new markets. These new exports are important, accounting for over 40% of export growth on average during the surge in developing countries. We argue that a large real depreciation induces firms to expand the product and market space for exports.     

THE INTELLECTUAL STRUCTURE OF SUPPLY CHAIN MANAGEMENT: A BIBLIOMETRIC APPROACH

Now that supply chain management has a two‐decade research history, it is possible to examine the literature to identify whether there is any latent intellectual structure using bibliometric tools. The study applies a citation and co‐citation approach to reveal four clusters of research that have emerged. One cluster has strong ties to the logistics field, with primarily conceptual articles. A second cluster finds its roots in operations research, and consists mainly of modeling articles. The application of multidimensional scaling, cluster analysis, and factor analysis on co‐citations demonstrated a clearly identifiable structure. The structure is examined and implications for the future development of supply chain research are discussed.     

Food Stamps and Food Spending: An Engel Function Approach

Estimation of Food Stamp Program (FSP) effects has been complicated by self-selection and by a contradiction between observed spending patterns and the economic theory of consumer choice. We developed a modified version of the traditional theory, in which participant households may be partly extramarginal even if they have some cash spending on at-home food. Using Current Population Survey (CPS) data for 2001–2005, we estimated Engel functions for at-home and away-from-home food spending for FSP participants and nonparticipants. Compared to nonparticipants with the same level of total income, participants had higher at-home food spending and lower away-from-home food spending.     

The Accounting Profession: Substantive Change and/or Image Management

The accounting profession’s image and reputation is built upon the members of the profession acting with the “highest sense of integrity” in “the public interest” (AICPA, 2003, www.aicpa.org/about). The Enron debacle initiated the latest crisis facing the profession regarding its image and reputation. The American Institute of Certified Public Accountants (AICPA) is the largest professional body representing the accounting profession and the one to which regulators have looked in establishing and upholding professional standards relating to the public practice of accounting and auditing. One of the AICPA’s responsibilities is to “promote public awareness and confidence in the integrity, objectivity, competence and professionalism of CPAs ....” (AICPA, 2003, www.aicpa.org/about). We analyze the public statements issued by the AICPA (i.e., press releases, speeches of officers, testimony, published articles) during this ethical and identity crisis beginning with the AICPA’s first public statement on the Enron debacle (AIPCA 2001) and concluding with the AICPA recognizing the need for a “new accounting culture” (Melancon 2002). In order to better understand the public discourse, we use image restoration theory (Benoit, 1995), because it provides a typology of strategies for dealing with the public face of crises. We identify the three most common strategies the AICPA employs during this period. Proposals for taking corrective action represent the most commonly employed strategy, but the analysis also indicates an attempt to evade responsibility by claiming defeasibility and to reduce the offensiveness of the situation by employing a bolstering strategy. A second analysis using DICTION, a software package useful in revealing latent dimensions in a text, indicates that early statements tend to use language related to accomplishing specific action while the later statements tend more toward general language that relates to peoples’ everyday lives. The findings raise questions as to substantive nature of the changes proposed by the AICPA, and thus, the extent to which the public interest is being served by them.     

Discussion: Statistics Research in Business and Industry ‐ The General Electric Experience

For over 60 years, the statistics group at General Electric (GE) has used statistical methods to successfully address key company issues, both reactively and in recent years more and more proactively and holistically. Much of this work invariably calls for some degree of statistics research, including what we now call statistical engineering. We briefly review the history of research at GE, describe the accomplishments, research, and evolution of the GE statistics group over time, and present our views on the state of statistics research in business and industry.     

National Judicial Power and the Dormant Commerce Clause

We develop a game in which a court monitors states as they regulatetrade among themselves. Contrary to commentators who see SupremeCourt oversight of state burdens on interstate commerce as theproduct of a powerfully ascendant court, we argue that the "dormantCommerce Clause" (DCC) originates as the strategic product ofan institutionally weak court. We provide three lines of argument.First, we refute the notion that merely observing the courtruling against state governments and those governments complyingwith its ruling is evidence of judicial power. Second, we showthat the equilibria of our "weak court" model directly impliesthe doctrinal contours of the DCC while the ascendancy hypothesisdoes not. Finally, we provide evidence that the court announceda weaker version of the DCC doctrine than sincerely preferredby pivotal justices on the court. Our arguments invite a revisedunderstanding of the role of the court in the development ofthe American political system.     

Classical and technological convergence: beyond the Solow-Swan growth model

Recent investigations into cross-country convergence followMankiw, Romer, and Weil (1992) in using a log-linear approximationto the Swan-Solow growth model to specify regressions. Thesestudies tend to assume a common and exogenous technology. Incontrast, the technology catch-up literature endogenises thegrowth of technology. The use of capital stock data rendersthe approximations and over-identification of the Mankiw modelunnecessary and enables us, using dynamic panel estimation,to estimate the separate contributions of diminishing returnsand technology transfer to the rate of conditional convergence.We find that both effects are important.