Showing 1 - 7 of 7
The article deals with the cost function at a mathematical level that only requires knowledge of differentials, but except for that, it keeps rigor at a high level. It only states theorems that require long proofs. The article justifies the existence of the cost function, points out its...
Persistent link: https://www.econbiz.de/10008549243
Some productivity measures area analyzed. The emphasis is on concepts, limitations and on some empirical results. Software is not discussed. The productivity measures are classified in optimized, whenever obtained by an optimization procedure, and not optimized, as yield, labor productivity and...
Persistent link: https://www.econbiz.de/10008917809
To describe Embrapa role in the development of the agribusiness it was important to characterize the economic environment that prevailed in the sixties and beginning of the seventies to show that the creation and development of Embrapa was a conscious decision of the federal government to...
Persistent link: https://www.econbiz.de/10011149491
Os dados com os quais os economistas trabalham foram gerados por agentes que tomaram decisões baseadas no conhecimento que tiveram dos mercados, de tecnologias e de como se comportam perante o risco. Numa economia competitiva, o mercado induz à busca da máxima eficiência, que se traduz na...
Persistent link: https://www.econbiz.de/10008555683
The paper develops the concept of return to scale at an elementary level, but rigorously. It is argued that constant and increasing returns are incompatible with competitive markets, because they imply the convergence to few firms, and this is not the case for the real world. The main point is...
Persistent link: https://www.econbiz.de/10008555691
O objetivo deste trabalho é isolar, em pequeno número, as premissas que têm permeado as discussões sobre agricultura familiar. Depois, por métodos elementares, elas são dedutivamente exploradas. Mostra-se que a produtividade da terra é, incorretamente, interpretada e que se deixa de lado...
Persistent link: https://www.econbiz.de/10008555699
Dois critérios foram utilizados para testar três métodos que estimam a eficiência técnica: o método Varian, a fronteira estocástica e a fronteira não-paramétrica, na literatura inglesa conhecida por “data envelopment analysis-DEA†e, em português, por encapsulamento de dados....
Persistent link: https://www.econbiz.de/10008555706