Breeding can result in more output per unit of inputs as well as improved quality of outputs. A genetic-based technical change component is introduced into the Malmquist index, and productivity growth due to genetic and nongenetic factors is estimated for Icelandic dairy farms with quality...

A theoretical model with nonlinear discarding costs is constructed to describe highgrading in a fishery with an Individual Transferable Quota (ITQ) program. The model shows that ITQs provide incentives to discard fish when the hold capacity of the vessel is nonbinding. An empirical model is...

Fishers in quota-regulated fisheries find it to their advantage to discard less valuable fish at sea to increase the value of their catch. A theoretical model describing the high-grading behavior of fishers is presented, and an empirical model is derived as well as a testing strategy to test for...

A theoretical model with nonlinear discarding costs is constructed to describe highgrading in a fishery with an Individual Transferable Quota (ITQ) program. The model shows that ITQs provide incentives to discard fish when the hold capacity of the vessel is nonbinding. An empirical model is...

The paper is concerned with efficient estimation of characteristics demand. We derive and estimate an inverse input demand system for quality characteristics by using 172,946 observations over 881 trading days in the Icelandic fish auctions. An improved estimation method based on an expanded...

Fishers in quota-regulated fisheries find it to their advantage to discard less valuable fish at sea to increase the value of their catch. A theoretical model describing the high-grading behavior of fishers is presented, and an empirical model is derived as well as a testing strategy to test for...

A frequently encountered problem in import demand estimation is how to account for competition between imports and domestic production. Traditionally, use of the Armington model has been a way to handle this problem. This is a disaggregate model which distinguishes commodities by country of...

A frequently encountered problem in import demand estimation is how to account for competition between imports and domestic production. Traditionally, use of the Armington model has been a way to handle this problem. This is a disaggregate model which distinguishes commodities by country of...

It has become clear that exploitation of natural resources may result in evolutionary selection pressure resulting in morphological changes of a species over time. This potentially adverse effect should be taken into account when regulating the use of such resources. In this paper we present a...