Bundling and Menus of Two-Part Tariffs

Inducing self-selection among different segments of consumers is an important issue in pricing. Some firms induce self-selection by offering a menu of two-part tariffs (e.g., different rate plans) and letting consumers select the tariff and quantity they prefer. Other firms induce self-selection by offering a menu of price-quantity bundles (e.g., different package sizes) and letting consumers select only from among these bundles. We show that bundling is more profitable absent cost considerations. Social welfare may be higher or lower with bundling.     

以史为鉴，美国经济或尚未转危为安

【美国《华尔街日报》5月5日】金融系统最痛苦的时刻或许已经过去，但美国经济的麻烦或许才刚刚开始。     

Incentive Effects of Rate-of-Return Regulation in Hong Kong: Reply

Journal of Regulatory Economics -     

Regulatory Monitoring and the Impact of Bank Holding Company Dividend Changes on Equity Returns

This paper examines the impact of announcements of dividend changes by bank holding companies (BHCs) on equity returns. Many empirical studies of dividend behavior reveal positive market responses to dividend increases, which have been interpreted as confirmation of the signalling theory of dividend behavior. These studies typically focus on “large” changes, however. We argue that BHCs allow for a stronger test of signalling theory because regulatory monitors, in effect, “certify” dividend signals. Consequently, even “small” dividend increases should result in positive abnormal equity returns. Using the event study methodology, our results generally confirm this hypothesis for a sample covering the period 1973–1987.     

COORDINATING PRODUCTION AND DISPOSAL OF COMMODITY STOCKPILES WITH APPLICATION TO AUSTRALIA'S WOOL INDUSTRY

Following the dismantling of a price-support program, a central bureaucracy is left with a commodity stockpile to dispose. It happened with wheat and feed grains in the U.S. in 1986 and wool in Australia in 1991. It soon may happen in Europe with grains, manufactured dairy products and other commodities which have supported prices. Obvious policies include privatising the stockpile, disposing of the stockpile by a central bureaucracy and quarantining the stockpile from the market. Each policy imposes constraints on disposal based, perhaps, on judgments of political acceptability to producers and government. In this article, optimal rules for production and disposal are derived and solved and a new policy is proposed. Then the model is applied to the disposal of Australia's wool stockpile. Results show that centralised disposal will almost always be preferred to privatisation of the stockpile. Centralised disposal is also preferred to quarantining the stockpile if interest rates are high, but quarantining is preferred if interest rates are low. Centralised disposal and quarantining are not optimal, however. Optimal production and disposal combines the efficiency of privatisation with the market power of centralised disposal. To achieve this, the property rights to the stockpile can be redefined using payment-in-kind certificates and individual transferable entitlements. The payment-in-kind certificates assign ownership of the stockpile to individual producers who then make both production and disposal decisions. The individual transferable entitlements allow the industry to produce efficiently and extend market power from the central bureaucracy to producers. For the Australian wool stockpile, optimal production and disposal would benefit the industry by an estimated $2.7 billion.     

Product attributes and models of multiple discreteness

Demand for product characteristics is examined within the context of models that allow for both corner and interior solutions corresponding to zero and non-zero demand. Product attribute information is associated with marginal utility and curvature (satiation) parameters of various utility functions. Empirical applications demonstrate the need for incorporating characteristics in a fairly general way. We also compare our approach to an ideal point and pure Lancasterian versions of our nonlinear utility model. The data support our model over either the ideal point or Lancasterian variants.     

在日常工作过程中使用SPC

统计质量控制（SQC），以控制图为人们所熟悉，源于休哈特20世纪20年代在芝加哥城外的西方电气厂的工作。