Loss of efficiency in regression analysis due to irrelevant variables: A generalization

This note extends the specification error analysis of irrelevant variables in a regression model. It is shown that the loss of efficiency in estimating relevant regression coefficient is directly related to the magnitudes of the canonical correlations between the sets of relevant and irrelevant variables.     

Has Dodd–Frank affected bank expenses?

Journal of Regulatory Economics - This paper examines the potential effects of the Dodd–Frank Act of 2010 on banks’ noninterest expenses. Using data on U.S. bank holding companies from...     

Learning to bid: The design of auctions under uncertainty and adaptation

We examine auction design in a context where symmetrically informed adaptive agents with common valuations learn to bid for a good. Despite the absence of private valuations, asymmetric information, or risk aversion, bidder strategies do not converge to the Bertrand–Nash equilibrium strategies even in the long run. Deviations from equilibrium strategies depend on uncertainty regarding the value of the good, auction structure, the agents? learning model, and the number of bidders. Although individual agents learn Nash bidding strategies in isolation, the learning of each agent, by flattening the best-reply correspondence of other agents, blocks common learning. These negative externalities are more severe in second-price auctions, auctions with many bidders, and auctions where the good has an uncertain value ex post.     

四步减少供应商风险

那些依靠供应商提供商品或服务的公司总是面临着由此而带来的财务风险.在经济环境艰难的时候,总有一些供应商要走向破产,在他们无力偿还债务的同时,金融机构又拒绝为他们提供每日运营所需的短期贷款.当企业走到快要山穷水尽的时候,他们会被迫不惜以降低产品质量和延长交付时间为代价来削减成本,而当企业这样做的时候,破产也就离他们不远了...