Human capital and earnings distribution dynamics

Earnings heterogeneity plays a crucial role in modern macroeconomics. We document that mean earnings and measures of earnings dispersion and skewness all increase in US data over most of the working life-cycle for a typical cohort as the cohort ages. We show that (i) a human capital model can replicate these properties from the right distribution of initial human capital and learning ability, (ii) differences in learning ability are essential to produce an increase in earnings dispersion over the life cycle and (iii) differences in learning ability account for the bulk of the variation in the present value of earnings across agents. These findings emphasize the need to further understand the role and origins of initial conditions.     

SHORT-AND LONG-RUN FARM PLANNING UNDER UNCERTAINTY; INTEGRATION OF LINEAR PROGRAMMING AND DECISION TREE ANALYSIS

The paper presents an approach to an integrated long-run and short-run farm planning under uncertainty, based on a decomposition of the problem into (i) a series of short-run plans, and (ii) a master long-run plan. The series of the short-run plans are parametrically solved by linear programming "variable right hand" techniques and are later integrated into a long-run program using a (computerized) decision tree analysis. The attitude towards risk of the farm operator is expressed in the willingness to maximize the expected value of the income stream over the planning horizon subject to the restriction that alternatives which may lead to lack of liquidity must be eliminated.
Ce travail présenle une approche tentative ďintégrer, sous conditions incertaines, une planification de ferme à court et long terme. La planification est basée sur la partition du problème en (i) série de courte durée et (ii) de tongue durée. Les séries de courte durée sont résolues àľaide dun programme linéaire, et intégreés ensuite dans un programme à long terme àľaide de ľanalyse de "décision arbre."ľattitude envers les risques de ľentrepreneur est exprimée par la volonté-de maxiliser la valeur de revenu prévu au delá de la planification sous resérve de la restriction que des alternatives qui peuvent conduire à un manque de moyens liquides, doivent être éliminees.     

A bank runs model with a continuum of types

We consider a bank runs model à la Diamond and Dybvig (1983) [3] with a continuum of agent types, indexed by the degree of patience. Much of our understanding based on the two-type model must be modified. The endogenous determination of a cutoff type is central to the analysis. In the case where the bank can credibly commit to a contract, the optimal contract results in socially excessive early withdrawals in every equilibrium of the post-deposit subgame. Thus, even at the best equilibrium the socially efficient outcome is not achieved, and agents? behavior exhibits features of a bank run. In the case where commitment is not possible, there are strictly more early withdrawals and strictly lower welfare than the full-commitment equilibrium.     

Revenue non-equivalence between auctions with soft and hard closing mechanisms: New evidence from Yahoo!

We use a unique dataset to examine the revenue differences between auctions with a hard-close ending rule versus those with a soft-close ending rule. We find that selling items using the soft-close rule increases the selling price by an amount between $25 and $44 (or 13-20 percent) over the hard-close format. One possible theoretical explanation for these results is that the hard-close ending rule accommodates the practice of sniping, which leads to a lower expected selling price. We find empirically that a lack of experience could help to explain why, in spite of the revenue differences, some sellers select the hard-close ending rule.     

The individual dual needs for assimilation and distinctiveness as a segmentation mechanism: developing the concept among students

The present study proposes that the individual's needs for assimilation and distinctiveness serve as a valuable mechanism for consumer segmentation and suggests that augmenting the List of Values with these dual needs enriches the understanding of consumer responses to marketing strategies. Results of a study using a sample of 536 students in an Israeli university identified five segments with significantly different needs for assimilation and differentiation. These segments showed different preferences for marketing communications and distribution channels in their purchasing decision of a cell phone. Mass media and website usage influenced segments marked by high assimilation, while word of mouth influenced segments characterized by high distinctiveness. Augmenting the List of Values with dual needs based segmentation moderated students’ tendencies to favour/dislike marketing communications and distribution channels.     

Regional Cooperation in the Use of Irrigation Water: Efficiency and Income Distribution

The paper presents an analysis of the economic potential of regional cooperation in water use in irrigation under conditions characterized by a general trend of increasing salinity. Income maximizing solutions for the region are derived and the related income distribution schemes are solved for, with the aid of cooperative game theory algorithms and shadow cost pricing. Distinction is made between distribution policies with and without side payments. The reasonableness and the acceptability of these schemes is later critically evaluated. The Nash-Harsanyi approach seems to be the most appropriate for the conditions studied.     

The Gains from Takeover Deregulation: Evidence from the End of Interstate Banking Restrictions

This paper uses interstate banking deregulation to explore the benefits of takeover deregulation and how these benefits are distributed across different firms. We find large and significant abnormal returns around the Interstate Banking and Branching Efficiency Act of 1994 which imply it created $85 billion of value in the banking industry. Consistent with an active market for corporate control allowing beneficial consolidation and providing needed discipline, there is a strong negative relationship between banks' abnormal returns and their prior performance. Consistent with managerial entrenchment limiting takeover discipline, banks with higher insider ownership, lower outside block ownership, and/or less independent boards have lower abnormal returns.     

Motivating a Supplier to Test Product Quality

This paper considers a supplier that offers a buyer a new product of unknown quality. The supplier can run a test that partially reveals unverifiable information concerning the quality, and the buyer can learn the actual quality after agreeing to buy the new product. I identify two main features of a contract for motivating the supplier to run the test. First, the contract may specify an upward or downward quantity distortion. Second, the contract may include slotting allowances, which may be welfare reducing when they discriminate against financially constrained suppliers.     

Adoption and abandonment of irrigation technologies

Adoption and abandonment processes are analyzed for seven irrigation technologies. A procedure is developed to estimate the technology cycle and applied to data available for citrus groves in several regions of Israel, and Gaza. The technology cycle was used to estimate diffusion-abandonment patterns for several irrigation technologies that have been abandoned. Results suggest that the technology cycle is unique to each technology and similar in length for all regions. Results predict the year of full abandonment of each technology. For modern technologies still in the diffusion phase, a logistic equation was fitted to the aggregated data. Results suggest that diffusion is significantly affected by economic variables such as water price, crop yield price, and subsidy for irrigation equipment. Use of the estimated equations for policy purposes suggest that water price and subsidy for irrigation equipment can be used to control the diffusion process (speed and ceiling) of the irrigation technologies.