发思古之幽情--嘉峪关、天水二城纪略

从城市定位上来看,嘉峪关应该是个工业城市,但因为有着特殊的旅游资源,所以近年来旅游及相关产业得到大幅增长。天水一直是西北地区重要的工业城市,特别是在国家“三线”建设时期,沿海城市的一批企业相继搬迁天水后,天水作为地区工业基地的地位更得到强化。     

Let the evidence speak again! Financial incentives are more effective than we thought

In this essay, the authors rejoin the debate about financial incentive effectiveness. They (a) briefly review the state of the literature in 1998, (b) highlight new meta‐analytic findings and update conclusions regarding the financial incentives–performance relationship, (c) address the myth that financial incentives erode intrinsic motivation, (d) provide explanations for the presumed failure of financial incentives and (e) offer some concluding thoughts and suggestions for future research.     

Keynesian Inefficiency and Optimal Policy: A New Monetarist Approach

A simple model of monetary/labor search is constructed to study Keynesian indeterminacy and optimal policy. In the model, economic agents have trouble splitting the surplus from exchange appropriately, and we consider monetary and fiscal policies that correct this Keynesian inefficiency. A Taylor rule neither implies determinacy, nor does it support an efficient outcome. An optimal policy yields an efficient and determinate allocation of resources, but equilibrium policy actions, wages, and prices are indeterminate at the optimum.     

Ordering,revenue and anchoring in art auctions

We estimate the effect of ordering by value on revenues in sequential art auctions held by Sotheby's and Christie's. We exploit a pre determined rotation of which of these two houses holds their auction first during auction week in New York City. When the house that goes first has relatively expensive paintings compared to the other house, we find that the sale premium for the week is around 21% higher relative to the mean sale premium, and the fraction of paintings sold during the week is around 11% higher. We provide evidence that this is due to an anchoring effect.     

Choice and the Internet: From Clickstream to Research Stream

The authors discuss research progress and future opportunities for modeling consumer choice on the Internet using clickstream data (the electronic records of Internet usage recorded by company web servers and syndicated data services). The authors compare the nature of Internet choice (as captured by clickstream data) with supermarket choice (as captured by UPC scanner panel data), highlighting the differences relevant to choice modelers. Though the application of choice models to clickstream data is relatively new, the authors review existing early work and provide a two-by-two categorization of the applications studied to date (delineating search versus purchase on the one hand and within-site versus across-site choices on the other). The paper offers directions for further research in these areas and discusses additional opportunities afforded by clickstream information, including personalization, data mining, automation, and customer valuation. Notwithstanding the numerous challenges associated with clickstream data research, the authors conclude that the detailed nature of the information tracked about Internet usage and e-commerce transactions presents an enormous opportunity for empirical modelers to enhance the understanding and prediction of choice behavior.     

The Intersection of Law and Ethics – at 600 Grant Street, Pittsburgh, PA: Is it Ethical to Assert a Legal Technicality to Avoid Liability for a Debt Created by Fraud?

A considerable literature exists regard-ing the moral obligation to keep one's promises. Several authors have focused on the exceptional circumstances which may or should excuse this moral duty. Less frequently discussed is the question of how this general moral obligation and its possible exceptions play out in the context of negotiable written promises to pay money, i.e., so-called "commercial paper."This paper focuses on the application of the legal rules governing commercial paper, and on the ethical implications involved in the application of those rules. More specifically, it asks whether the assertion of the technical doctrine known as "holder in due course," and the denial of that status in some cases, promotes ethical behavior in the marketplace. By examining the circumstances of one case, involving a substantial investment and a large bank, I hope to shed some light on how the legal and ethical rules do in fact "intersect."