经济变迁的过程

非常高兴再次来到中国经济研究中心.能再次来到中国也令人非常愉快,因为中国是世界上最有意思、最富挑战性的国家,尤其与我的研究兴趣相关--经济和社会变迁的过程,这正是我要与你们谈的话题.传统的经济学理论是静态的,它提供了理论分析的框架,解释市场或经济的各个部分在某一时刻是如何运行的.但它不能解释经济随着时间的推     

A closer look at Black–Scholes option thetas

This paper investigates Black–Scholes call and put option thetas, and derives upper and lower bounds for thetas as a function of underlying asset value. It is well known that the maximum time premium of an option occurs when the underlying asset value equals the exercise price. However, we show that the maximum option theta does not occur at that point, but instead occurs when the asset value is somewhat above the exercise price. We also show that option theta is not monotonic in any of the parameters in the Black–Scholes option-pricing model, including time to maturity. We further explain why the implications of these findings are important for trading and hedging strategies that are affected by the decay in an option’s time premium.

Relative price efficiency,technical change,and scale economies for large commercial banks

One of the more important and frequently researched topics in banking is the production process. Previous studies of bank production, however, have employed a methodology which is not appropriate for regulated firms. We generate cost estimates for large commercial banks utilizing a generalized cost model which subsumes the commonly used model as a special case. Our findings suggest that the traditional methodology is inappropriate for the sample banks and generates biased estimates of cost parameters, scale effects, and the influence of technological change. The new methodology allows us to measure directly the effect of regulation on bank costs. The effect found is small, but significant.     

Improving customer-focused marketing capabilities and firm financial performance via marketing exploration and exploitation

Evidence within the marketing literature has shown that marketing capabilities are important drivers of firm performance. However, very little is known about how firms improve their marketing capabilities via the embedding of new market knowledge. Organizational learning theory provides us with a theoretical lens through which we can examine how existing customer-focused marketing capabilities may be improved and new customer-focused marketing capabilities may be created via marketing exploitation and exploration capabilities. In addition, this study investigates whether ambidexterity in marketing exploration and exploitation exists and finds that firms cannot do both at high levels without risking a negative impact on customer-focused marketing capabilities. This study also presents findings demonstrating how improving the two customer-focused marketing capabilities in our study, brand management and customer relationship management, impacts objective financial performance.     

The impact of product market strategy-organizational culture fit on business performance

Drawing on the organization theory literature concerning configuration theory, competing values theory, and fit assessment methodologies, we examine the existence and performance impact of product market strategy–organization culture fit. Specifically, we assess the relationship among three important elements of a firm’s product market strategy and the four cultural orientations that comprise the competing values theory of organizational culture using primary and secondary data from the US trucking industry. Using two different conceptualizations and operationalizations of fit, our results provide the first empirical support for the existence of interrelationships among product market strategy decisions and organizational culture orientations consistent with configuration theory conceptualizations of product market strategy–organizational culture fit. We also find support for theorized but previously untested relationships between product market strategy–organizational culture fit and firms’ customer satisfaction and cash-flow return on assets (CFROA) performance. Since product market strategy is heavily reliant on the input of marketers, and organizational culture has long been recognized as having an important impact on marketing-related decision making, these findings have important implications for marketing strategy research and practice.     

Journal of Economic Growth

Volume of Contents

Journal of Economic Growth     

Subsidy Schemes and Charitable Contributions: A Closer Look

This article replicates and “stress tests” a recent finding by Eckel and Grossman (2003) that matching subsidies generate substantially higher Charity Receipts than theoretically comparable rebate subsidies. In a first replication treatment, we show that most choices are consist with a “constant (gross) contribution” rule, suggesting that inattention to the subsidies’ differing net consequences may explain the higher revenues elicited with matching subsidies. Results of additional treatments suggest that (a) the charity dimension of the decision problems has little to do with the result, and (b) extra information regarding the net consequences of decisions reduces but does not eliminate the result.     

Marginal Intraindustry Trade and Labor Adjustment

In the context of Ethier's model of the division of labor, this paper accomplishes three tasks. First, it complements existing literature on the algebraic properties of marginal intraindustry trade (MIIT) measures by embedding one of these measures in a general equilbrium model. Consistent with the existing literature, it is found that change in the Grubel–Lloyd index provides systematically different economic information from change in the MIIT index. Second, it examines the connection between intraindustry trade and intra- industry adjustment. Here it is found that the informal assumption that intraindustry trade generates only intraindustry adjustment cannot be sustained. That is, intraindustry trade will generally induce interindustry adjustment. Finally, because intraindustry trade generates interindustry adjustment, increased intraindustry trade will generally induce long-run changes in relative factor prices. This suggests, given the prominence of intraindustry trade in OECD countries, that there may be problems with inference on the link between rade and wages undertaken in a strict Heckscher–Ohlin framework.     

Gaining and leveraging customer-based competitive intelligence: the pivotal role of social capital and salesperson adaptive selling skills

This study explores the generation and use of competitive intelligence (CI) within the buyer–seller exchange process and its influence on salesperson performance. Using the concept of social capital as a theoretical foundation and multilevel data collected at three time points from 686 customer–salesperson dyads, the authors empirically test a conceptual framework that proposes both antecedents and consequences of CI sharing between customer and salesperson. The results of the study demonstrate that CI sharing by customers is a function of salesperson customer orientation, customer-centric extra-role behaviors, and relationship quality. CI sharing translates into increased perceived value, share-of-wallet, and profit margins when the salesperson utilizes the information to position and differentiate his or her product; however this occurs only when the salesperson has strong adaptive selling skills. Surprisingly, CI negatively influences these outcomes among low-adaptive salespeople, indicating that CI can actually work to a firm’s disadvantage if the salesperson is not equipped to respond to it. These findings suggest that CI must be examined differently than general market knowledge and that firms may leverage CI to their tactical advantage at the salesperson–customer interface if managed effectively.     

Coal gasification: An economic evaluation

Political interest in developing the capability to produce gaseous fuel from coal in the United States has been cyclical in nature, depending primarily upon the security of the international market for oil and public attitudes toward nuclear power. Interest in coal gasification technology by private investors, however, depends primarily on the economic and technological considerations analyzed in this paper. A cost forecasting model is developed with the capability to take into account future economic and technological uncertainties associated with producing high BTU gas (a substitute for natural gas) from coal. The cost forecasting model incorporates probabilistic information on key economic and technological parameters subject to future uncertainty and simulates, by Monte Carlo methods, the costs which private investors would incur over the life of a commercial size coal gasification plant. The results suggest it is highly unlikely that the coal gasification process could produce high BTU gas more cheaply than the price at which natural gas is likely to be available.The cost forecasting model is also modified to compare the cost per kilowatt–hour of generated electricity when fueling a 1,000 Mw power plant with oil versus high BTU gas from coal. Again, based upon the costs to private investors, the simulation results indicate a very low probability that high BTU gas from coal would prove the least costly fuel for generating electricity.The implied economic infeasibility for private investment in coal gasification does not necessarily provide a basis for public policy to abandon the technology. Public policy recommendations must consider social costs as well as private costs. Possibly the greatest social cost associated with abandoning coal gasification is the risk of a significant energy supply interruption. A diversified national energy policy including coal gasification may in fact be less costly if relevant social costs are included in the calculations. Results from the cost forecasting model indicate the size and type of public subsidies that may be necessary to support a diversified energy industry which would include coal gasification.