This study estimates transient and persistent technical efficiencies (TEs) using a generalized true random-effects (GTRE) model. We estimate the GTRE model using maximum likelihood and Bayesian estimation methods, then compare it to three simpler models nested within it to evaluate the...

Books reviewed: David A. Cleveland and Daniela Soleri (eds) - Farmers, Scientists and Plant Breeding: Integrating Knowledge and Practice Clem Tisdell - The Economics of Conserving Wildlife and Natural Areas Derek Byerlee and Ruben G. Echeverria (eds) - Agricultural Research Policy in an Era of...

As private plant breeding replaces public programs, the efficient provision and utilisation of key enabling technologies for crop breeding, which are largely knowledge based and provide the foundation for variety improvement, might be at risk. Typically, such inputs are non-rival in use and are...