This study uses the Box-Cox (BC) transformations to examine nonlinearity in price modeling and compare results from several functional specifications in hedonic price analysis of yam in Togo. Based on a sample of 6,402 observations on price and produce characteristics generated through a market...

Despite improvements in production incentives, agricultural output in Africa remained sluggish through the 1990s. Low use of purchased inputs may be part of the cause of persistently low productivity in African agriculture. This article analyzes the roles of relative prices and transactions...