Экономика » Экономика отраслевых рынков » Аграрная экономика » Рынки агропродовольственной продукции
Всего публикаций в данном разделе: 2
Книги
Авторы: |
Названия: |
Опубликовано на портале: 30-11-2003
J. Meyer
2003
Applied econometric analyses of market integration based on price data alone have
been criticised, because
they neglect the role of transaction costs. To meet this objection threshold vector
error correction models are
used. Threshold models can account for the effects of transaction costs in price
transmission without directly
relying upon information about these costs, which are often unavailable. Results
from threshold models that
are based on two thresholds provide results that are economically more intuitive
than those obtained from
one threshold models. However there is no adequate econometric test for
threshold significance in a two-
threshold model available so far; such tests are only available for the one threshold
model. In this paper a
restricted two-threshold model is developed in which the significance of the thresholds
can be tested. This
model is therefore amenable to economic interpretation and statistical inference.
This model is used to
estimate market integration on the European pig market.


Опубликовано на портале: 12-12-2003
Jose A. Gomez-Limon, Laura Riesgo, Manuel Arriaza
Durban, 2003
In this paper we present a methodology to analyse input use in the agricultural
sector. The novelty of the
theoretical model explained is that it has been developed considering a multi-criteria
environment. Thus, the
optimal input use condition is determined by the assessment of "multi-attribute utility"
and "multi-attribute
marginal utility". We show how the approach adopted in this paper is a generalization
of the single-attribute
expected utility theory. The theoretical model developed is further implemented in
an empirical application
that studies water for irrigation use as a particular case. Results show how multi-attribute
utility functions
elicited for a sample of 52 irrigators explain differences on irrigation
water use in relative homogenous
agricultural systems, albeit exhibiting similar water partial utility functions.
We conclude that these
differences come from the dissimilar weights that farmers attached to each attribute
in the aggregate utility
function. The irrigated area considered as case study is located in North-western
Spain.

