The authors present models in which price discrimination in the context of a two-part price can occur in some competitive markets. Purchases take place in groups, which choose which firms to patronize. While firms are perfectly competitive with respect to groups, they have some market power over...

Good health is an integral component of the quality of human life, a prerequisite for developing human potential and an important determinant of economic development. When a person is ill from a tropical disease in an agricultural economy, a complex interaction between the individual's welfare...

A broker has an obligation to ensure that his client incorporates suitable assets into his portfolio. Greater objectivity can be brought to assessments of suitability by comparing the performance of the aggrieved investor's portfolio to a benchmark portfolio using the Modigliani & Modigliani...

In this paper, we derive a discrete choice model of the demand for medical care from a theoretical model that implies a natural interrelation between price and income. We show that, in the context of a discrete choice model, if health is a normal good, then the price elasticity of the demand for...