世界经济2006年的回顾与2007年的展望

2006年的回顾一、尽管原油价格高涨,2006年的世界经济仍然取得高增长去年(2006年)的世界经济在2005年以来的原油价格暴涨的影响之外,又加上有禽流感的困扰,经济形势稍有暗淡,但其增长率预计仍会继2005年的5.3%(实际增长率。     

The economics of networks

I analyze the salient features of networks and point out the similarities between the economic structure of networks and the structure of vertically related industries. The analysis focuses on positive consumption and production externalities, commonly called network externalities. I discuss their sources and their effects on pricing and market structure. I distinguish between results that do not depend on the underlying industry microstructure (the ‘macro’ approach) and those that do (the ‘micro’ approach). I analyze the issues of compatibility, coordination to technical standards, interconnection and interoperability, and their effects on pricing and quality of services and on the value of network links in various ownership structures. I also briefly discuss the issue of interconnection fees for bottleneck facilities.     

Spatial patterns of poverty in Vietnam and their implications for policy

This study examines the geographic distribution of poverty in Vietnam by applying small area estimation methods to household budget data and population census data. The resulting district-level poverty estimates suggest that the incidence of poverty is highest in the remote northern and central highlands and lowest in the south-east and in large urban centres. However, mapping the density of poverty reveals that most poor people do not live in the poorest districts but in the two lowland deltas, where poverty incidence is intermediate. The policy implications of these findings present an important trade-off between targeting poor areas and poor people that can only be resolved with better information on the relative costs of delivering different programmes and their expected impact. Existing government estimates of poverty at the district level are not closely correlated with our poverty estimates, perhaps because of regional variation in their methods of collecting poverty data.     

Being Innovative While Being Green: An Experimental Inquiry into How Consumers Respond to Eco‐Innovative Product Designs

Eco‐innovations are an effective way for companies to strategically align themselves with customers’ growing environmental concerns. Despite their crucial role, scant research has focused on eco‐innovative product designs. Drawing from the sustainability and innovation literature, this article proposes that in the design of an eco‐innovation, its degree of innovativeness, level of eco‐friendliness, and detachability significantly affect consumers' adoption intentions. This article develops various conceptual models tested through three independent online experiments with U.S. consumers. The findings support the hypotheses and provide useful insights into the underlying mechanisms of how and why consumers respond to eco‐innovative product designs across various high‐tech product categories. Specifically, the results show (1) a positive effect of innovativeness degrees of eco‐innovative attributes on consumers' perceptions of product eco‐friendliness and on their adoption intentions as well as a significant moderating role of consumers' need for cognition (Study 1); (2) a positive influence of eco‐friendliness levels of eco‐innovative attributes on consumer adoption intentions in the case of high‐complexity products but not for low‐complexity products, emphasizing the need to adopt different approaches when developing eco‐innovations to ensure favorable consumer reactions (Study 2); and (3) a significant impact of the detachability of eco‐innovative attributes on consumers' perceptions of trade‐offs between environmental benefits and product functionality and on their intentions to adopt eco‐innovations (Study 3). These findings add to existing theoretical knowledge, provide actionable managerial implications, and identify fruitful avenues for future research.     

Delineating Publicly Listed Family and Nonfamily Controlled Firms: An Approach for Capital Market Research in Australia*

Recent capital market research evidence suggests that a large proportion of public companies worldwide are characterized by controlling stockholders who are more often families, usually the founder(s) or their descendants. There has been considerable debate on whether “family” firms can indeed be accurately delineated from nonfamily firms given the diversity and abundance of family business definitions in the literature. This paper provides a robust definition of family business for the purposes of capital market research. Using an accounting‐based definition of family business, the paper outlines a four‐step procedure that provides validation for identifying family controlled companies listed on the Australian Stock Exchange. A significant feature of the research methodology was reliance on data collected from the Australian Securities and Investments Commission. Having access to the corporate regulator's restricted data enabled the researchers to establish important links between directors and their private related entities.     

Investment-specific technological change and growth accounting

Greenwood et al. [1997. Long-run implications of investment-specific technological change. American Economic Review 87(3), 342-362; and 2000. The role of investment-specific technological change in the business cycle. European Economic Review 44, 91-115] and Hercowitz [1998. The ‘embodiment’ controversy: a review essay. Journal of Monetary Economics 41, 217-224] have claimed that the Jorgenson form of growth accounting is conceptually flawed and severely understates the importance of technological progress embodied in new capital goods for explaining growth. To the contrary, this paper shows that in its technology aspects their model is a special case of the Jorgensonian growth accounting model. What they call investment-specific technological change is shown to be closely related to the more familiar concept of total factor productivity (TFP) growth: statements about the one can be translated into statements about the other. Empirically, differences between their conclusions and those of growth accounting studies about the extent to which embodiment explains US economic growth are found to relate more to data than to methodology.