The study evaluates the efficiency of government intervention using a vertical structured model including imperfectly competitive agricultural input markets, the bread grain market, and the imperfectly competitive food industry. To test for policy efficiency the actually observed bread grain policy is compared to a hypothetical efficient policy. To account for the sensitivity of the results in ...

Wage Determination and Imperfect Competition A striking feature of the past few decades has been the development of wage-determination models that assume that labour markets are imperfectly competitive. This paper discusses two such models (trade unions and oligopsony), although there are many more. It also asks if imperfectly competitive models should be used whenever researchers are modelling...

This paper presents a computational approach to the imaging of a partially immersed imperfectly conducting cylinder. The shape and conductivity of an imperfectly conducting cylinder and scatters is unknown, the transverse magnetic (TM) wave illuminated while the scattered field is recorded outside in free space. Based on the boundary condition and the measured scattered field, a set of nonlinea...