人民币问题并非表面那么简单

美国国会希望通过一项法案,惩罚那些被判定为货币汇率过低的国家。该法案直接针对中国。但它有助于解决中美贸易不平衡的问题吗？     

Knowledge sharing in an organization

Managers are always seeking effective policies that encourage employees to share their knowledge with others in an organization. The appropriate organizational incentives are difficult to investigate due to human factors and other institutional complexities affecting sharing behaviors of individuals. Conducting laboratory or field experiments to evaluate the effectiveness of various organizational incentive policies is unrealistic. This work proposes a novel agent-based modeling approach to simulate the actions of knowledge sharing between actors in an organization. Several human and institutional factors in this artificial world were manipulated to understand knowledge sharing. The simulation results produce the following interesting findings. (1) The initial state of actors' action affects the knowledge-sharing action regardless of the adopted strategy. (2) Poorer collective capability among the population lowers the knowledge sharing behaviors. (3) The incentive policy has restricted effects for increasing the sharing action. Rewarding each knowledge-sharing action is more effective than the periodic organizational incentives to encourage actors' knowledge sharing behaviors.     

Cost effectiveness of a 92-gene assay for the diagnosis of metastatic cancer

Objectives:

To estimate the clinical and economic trade-offs involved in using a molecular assay (92-gene assay, CancerTYPE ID) to aid in identifying the primary site of difficult-to-diagnose metastatic cancers and to explore whether the 92-gene assay can be used to standardize the diagnostic process and costs for clinicians, patients, and payers.

Methods:

Four decision-analytic models were developed to project the lifetime clinical and economic impact of incorporating the 92-gene assay compared with standard care alone. For each model, total and incremental costs, life-years, quality-adjusted life-years (QALYs), incremental cost–effectiveness ratios (ICERs), and the proportion of patients treated correctly versus incorrectly were projected from the payer perspective. Model inputs were based on published literature, analyses of SEER (Surveillance Epidemiology and End Results) data, publicly available data, and interviews with clinical experts.

Results:

In all four models, the 92-gene assay increased the proportion of patients treated correctly, decreased the proportion of patients treated with empiric therapy, and increased quality-adjusted survival. In the primary model, the ICER was $50,273/QALY; thus, the 92-gene assay is therefore cost effective when considering a societal willingness-to-pay threshold of $100,000/QALY. These findings were robust across sensitivity analyses.

Conclusions:

Use of the 92-gene assay for diagnosing metastatic tumors of uncertain origin is associated with reduced misdiagnoses, increased survival, and improved quality of life. Incorporating the assay into current practice is a cost-effective approach to standardizing diagnostic methods while improving patient care. Limitations of this analysis are the lack of data availability and resulting modeling simplifications, although sensitivity analyses showed these to not be key drivers of results.     

Corporate communication, ethics, and operational identity: a case study of Benetton

This article investigates conceptual and strategic relationships between corporate identity, organizational identity and ethics, utilizing the Benetton Corporation as an illustrative case study. Although much attention has been given to visual aspects of Benetton's renowned ethical brand building efforts, few studies have looked at how Benetton's employees, retail environments and trade events express ethical aspects of their well-known corporate identity. A multi-method case study, including interviews at retail outlets and trade events, sheds light on several important yet under-studied components of corporate identity, including stakeholders such as retail managers and contract employees. Analysis of Benetton's operations revealed disconnection and inconsistency, as well as a failure to communicate ethical values and socially responsible attributes throughout organizational identity. Operational identity emerged as a useful complement to models of corporate identity. We demonstrate the way in which organizations may fail to capitalize on positive aspects of their organizational identity by neglecting their operational identity.     

An experimental approach to valuing information

This article proposes a method to directly measure the value of information (VOI) conveyed in a label. Using data collected from a field experiment conducted in two grocery stores in Texas, we find the VOI contained in U.S. federally mandated country of origin labels for beef and pork is 36% lower using the new direct elicitation compared to the conventional approach. The mean value‐of‐origin information, in the context of our experiment, ranges from $0.016 to $1.08 per pound of steak/chop purchased, depending on the valuation method used and assumptions about labeling knowledge and average volume purchased per choice. The VOI is substantively influenced by ethnocentrism and meat consumption frequency.     

The Chinese RMB: Its Value,Its Peg,and Its Future

The valuation of the Chinese renminbi (RMB) has drawn lots of attention lately and a great deal of pressure on the part of developed nations for revaluation. In addressing the issue of valuation, this paper develops a new purchasing power parity (PPP) index of China’s exchange rate and finds that the while undervalued, the undervaluation is neither unusual nor bad policy. Moreover, China’s overall external trade balance does not seem to be that far out of equilibrium. China’s desire to join the G-7 club is likely to result in abandoning its peg, however, despite the increased risk to its economic development.JEL Classification F310     

The Impact of Pillar II Funding: Validation from a Modelling and Evaluation Perspective

We extend the Common Agricultural Policy Regionalised Impact Modelling System (CAPRI) with a regional computational general equilibrium (CGE) model to estimate the effects of the Pillar II of the Common Agricultural Policy. Our aim is to assess the modeling approach by comparing the scenario results with observations from the evaluation reports for rural development, supplemented with expert interviews and findings from the literature. For this purpose, an ex‐post scenario is developed for Germany that models the effect of the Pillar II measures in 2006. We observe a moderate impact, namely, an increase in agricultural income (5%) and agricultural land use (0.15%), particularly grassland, and a substitution of arable land with grassland. This effect leads to a total increase in agricultural production, particularly of beef, and to an increase in total greenhouse gas emissions and total nitrogen surplus for Germany. Greenhouse gas emissions and nutrient surpluses per ha, however, are reduced. We observe that farm investment programmes displace private investment. The evaluation reports confirm the moderate impact and our major results, as does the comparison with other literature. However, the conclusions about agri‐environment measures and their impact on income differ. The most important difference between our results and the evaluation reports and majority of the present literature is that we also quantify the joint effect between the whole economy and policy measures, with some contradictory effects.     

美国会不会成为下一个希腊——谈美国金融监管改革

5月20日,美国参议院通过了金融监管改革方案。奥巴马政府选择在此时着手金融监管改革,一个重要的原因,是为了捞回在医改中丢失的政治资本,为赢得中期选举做准备