The paper analyzes the decision made by firms to issue one-time coupons as a means of attracting new deal-prone customers. Given the structure of the market and the share of loyal customers, we derive boundaries for the value of the coupon, as well as the optimal face value of the coupon. The main variables which determine the coupon value are: the size of deal-prone and loyal market segments, ...

The paper discusses economic theories of harm for anti-competitive margin squeeze by unregulated and regulated vertically integrated firms. We review both predation and foreclosure theories, as well as the mere exploitation of upstream market power. We show that foreclosure provides an appropriate framework in the case of an unregulated firm, whereas a firm under tight wholesale regulation shou...

The role of the central counterparties (CCPs) on the market is to take over the counterparty risk during the trading on stock exchanges. CCPs use a multilevel guarantee system to manage this risk. The margin has a key role in this guarantee system, and the paper will focus only on this level. The main motivation of this paper is to introduce a potential margin calculation method which is compli...

deregulation policy has caused some changes in the concepts of power systems reliability assessment and enhancement. in this paper, generation reliability is considered, and a method for its assessment using intelligent systems is proposed. also, because of power market and generators’ forced outages stochastic behavior, monte carlo simulation is used for reliability evaluation. generation r...

The study aimed at analyzing the structure, conduct and performance of fish market in Lake Zeway, Central part of Ethiopia. A total of 24 traders from 6 markets were selected for the study purposively. Data analysis was carried out using descriptive statistics, for Structure, Conduct and Performance (SCP) approach. According to the results, there were five kinds of fish marketing chains in the ...

Cyclicality and the Labor Market for Economists Using a unique sample of new Ph.D. economists in 1987 and 1997, we examine how job seekers and their employers alter their search strategies in strong versus weak markets. The 1987 academic market was strong while the 1997 market was much weaker. A multimarket theory of optimal search suggests that job seekers will respond to a weakening market by...

This study analyzed the performance of cabbage marketing in Abia State, Nigeria. Specifically the study sought to: describe socio-economic characteristics of cabbage marketers; identify marketing channels of cabbage; determine marketing cost components of cabbage marketers; determine marketing margins, market share and marketing efficiency of cabbage marketers; and determine socio-economic fact...

Using geometric illustrations, we investigate what implications of portfolio optimization in equilibrium can be generated by the simple mean-variance framework, under margin borrowing restrictions. First, we investigate the case of uniform marginability on all risky assets. It is shown that changing from unlimited borrowing to margin borrowing shifts the market portfolio to a riskier combinatio...