A review of recent literature reveals the development of several deterministic non-parametric (DNP) tests of market power. The performance of selected DNP market power tests is ascertained to determine their usefulness as an alternative to data-hungry parametric market power tests. This...

Food expenditures and subsistence quantities of poverty status and non-poverty status US households are analysed within a Linear Expenditure System that postulates subsistence quantities to be linear combinations of demographic variables. Using the US Bureau of Labor Statistics' 1992 Consumer...

This article considers bilateral imperfect competition between processors and retailers to estimate the trade off between market power and cost efficiency. The model is based on pricing rules from a firm's profit maximization and nests both oligopoly and oligopsony models. An empirical analysis...

In this study, the double-hurdle model typically used in cross-sectional data is extended to panel data structures. The new double-hurdle model can account not only for the censored nature of commodity purchases, but also for the dynamics of the purchase process. In this model, a flexible error...