The dual relationship between parameters of normalized quadratic cost and profit functions is determined when firms can implement market power on the output market. An approach is developed to test the market power by comparing the profits of a firm with and without market power. Simulations...

In the recent past, the concentration of seed maize processing and marketing in Kenya has raised serious public concerns. The inability of this industry to ensure affordable prices of certified seed maize for the farming community has led policy makers to question its market behaviour. In spite...

Previous studies have measured market power when firms consider the consequences of their actions on profits when deciding how much to produce or purchase or both. In contrast, this study illustrates how to measure the exercise of market power when growers collectively control the quantities...

In the recent past, the concentration of seed maize processing and marketing in Kenya has raised serious public concerns. The inability of this industry to ensure affordable prices of certified seed maize for the farming community has led policy makers to question its market behaviour. In spite...

In this paper, we analyse the market power of the retail industry in the French tomato market. Following the methods developed in the New Empirical Industrial Organization, we develop a structural model of this industry. The analysis is based on detailed data on final consumption and prices at...

In Hotelling's fundamental model (1929), the geographical distance and high transportation costs grant firms present in a market a certain power over local buyers in their neighborhoods. Starting from his model, this study shows that in the competition between a bank and a microfinance...