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NEP: New Economics Papers
Agricultural Economics
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Edited by: Angelo Zago
http://ideas.repec.org/e/pza49.html
Universita degli Studi di Verona
Date: 2006-03-18
Papers: 5
This document is in the public domain, feel free to circulate it.
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In this issue we have:
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1. From Microlevel Decisions to Landscape Changes: An Assessment
of Agricultural Conservation Policies
Wu, JunJie; Adams, Richard M.; Kling, Catherine L.; Tanaka,
Katsuya
2. Changing Structure of Pork Trade, Production, and Processing
in Mexico, The
Batres-Marquez, S. Patricia; Clemens, Roxanne; Jensen,
Helen H.
3. Incentive to reduce crop trait durability
Ambec, Stefan; Langinier, Corinne; Lemarie, Stephane
4. OPTIMAL LAND CONVERSION AND GROWTH WITH UNCERTAIN
BIODIVERSITY COSTS
Anke Leroux; John Creedy
5. Air Emissions of Ammonia and Methane from Livestock
Operations: Valuation and Policy Options
Shih, Jhih-Shyang; Burtraw, Dallas; Palmer, Karen L.;
Siikam?ki, Juha V.
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1. From Microlevel Decisions to Landscape Changes: An Assessment
of Agricultural Conservation Policies
Wu, JunJie
Adams, Richard M.
Kling, Catherine L.
Tanaka, Katsuya
The growth in conservation programs has created a need for
modeling frameworks capable of measuring microlevel behavioral
responses and macrolevel landscape changes. This paper presents
an empirical model that predicts farmers' production practices
and the resulting levels of agricultural runoffs at more than 42,
000 agricultural sites in the upper-Mississippi river basin under
alternative conservation policies. Results suggest that payments
for conservation tillage and crop rotations increase the use of
these conservation practices. However, the acreage response is
inelastic and the programs are not likely to be cost effective on
their own for addressing hypoxia problem in the Gulf of Mexico.
Date: 2006-03-10
URL: http://d.repec.or
g/n?u=RePEc:isu:genres:12519&r=agr
2. Changing Structure of Pork Trade, Production, and Processing
in Mexico, The
Batres-Marquez, S. Patricia
Clemens, Roxanne
Jensen, Helen H.
The structure of the pork production, slaughter, and processing
sectors in Mexico has changed significantly since implementation
of the North American Free Trade Agreement (NAFTA) and with
rising income and increased urbanization. Today, Mexico?s pork
industry has become more integrated and achieved greater
production efficiencies in response to increasing demand for
better product quality and stricter sanitary practices in
production and processing pork for both the domestic market and
for export. However, despite these improvements Mexico?s pork
industry has not kept up with the rising domestic demand, and
Mexico has become an increasingly important market for the United
States. A key to the development of increased trade in both live
animals and pork is growth of federally inspected or ?Tipo
Inspecci?n Federal? (TIF) plant production, as well as
development of marketing channels and product promotion that
support high-quality consumer meat products.
Keywords: live hogs and pork trade, Mexico, NAFTA, pork industry,
pork slaughter, TIF plants.
Date: 2006-03-14
URL: http://d.repec.or
g/n?u=RePEc:isu:genres:12527&r=agr
3. Incentive to reduce crop trait durability
Ambec, Stefan
Langinier, Corinne
Lemarie, Stephane
To reduce the competition from farmers who self-produce seed, an
inbred line seed producer can switch to nondurable hybrid seed.
In a two-period model we investigate the impact of crop
durability on self-production, pricing and switching decisions,
and we examine the impact of license fees paid by self-producing
farmers. First, in an inbred line seed monopoly model, we find
that the monopolist may produce technologically dominated hybrid
seed in order to extract more surplus from farmers. Further, the
introduction of license fees improves efficiency. Second, we
study how the monopolist's behavior is affected by the entry of a
nondurable hybrid seed producer. We show that the inbred line
seed producer might benefit from competing with a technologically
dominated hybrid seed producer, as this allows for consumers'
discrimination.
Keywords: Durable good, nondurable good, licenses.
JEL: Q1
Date: 2006-03-14
URL: http://d.repec.or
g/n?u=RePEc:isu:genres:12525&r=agr
4. OPTIMAL LAND CONVERSION AND GROWTH WITH UNCERTAIN
BIODIVERSITY COSTS
Anke Leroux
John Creedy
An important characteristic defining the threat of environmental
crises is the uncertainty about their consequences for future
welfare. Random processes governing ecosystem dynamics and
adaptation to anthropogenic change are important sources of
prevailing ecological uncertainty and contribute to the problem
of how to balance economic development against natural resource
conservation. The aim of this study is to examine optimal growth
subject to non-linear dynamic environmental constraints. In a two-
sector exogenous growth framework we model a stochastic
environmental good, exhibiting uncertain ecological responses to
environmental change, and describe the economic and environmental
trade-offs that ensue for a risk-averse social planner. Allowing
for ecological risk tends to slow economic growth if
environmental impacts are assumed to increase exponentially as
the rate of disturbance increases. Taken in isolation the effects
of ecosystem resilience and ecological uncertainty on the rate of
natural resource development are ambiguous and depend on
normative parameters such as the social planner?s attitude to
risk and rate of time preference.
Date: 2005
URL: http://d.repec.org/
n?u=RePEc:mlb:wpaper:957&r=agr
5. Air Emissions of Ammonia and Methane from Livestock
Operations: Valuation and Policy Options
Shih, Jhih-Shyang (Resources for the Future)
Burtraw, Dallas (Resources for the Future)
Palmer, Karen L. (Resources for the Future)
Siikam?ki, Juha V. (Resources for the Future)
The animal husbandry industry is a major emitter of methane,
which is an important greenhouse gas. The industry is also a
major emitter of ammonia, which is a precursor of fine
particulate matter?arguably, the number-one environment-related
public health threat facing the nation. We present an integrated
process model of the engineering economics of technologies to
reduce methane and ammonia emissions at dairy operations in
California. Three policy options are explored: greenhouse gas
offset credits for methane control, particulate matter offset
credits for ammonia control, and expanded net metering policies
to provide revenue for the sale of electricity generated from
captured methane gas. Individually, any of these policies appears
to be sufficient to provide the economic incentive for farm
operators to reduce emissions. We report on initial steps to
fully develop the integrated process model that will provide
guidance for policymakers.
Keywords: methane, ammonia, carbon dioxide, greenhouse gases,
climate change, offset, particulate matter, net
metering, environmental policy, CAFO, manure management,
biodigester, electricity, global warming, cost-benefit,
incentive approach
JEL: Q2 Q4 Q53
Date: 2006-03-14
URL: http://d.repec
.org/n?u=RePEc:rff:dpaper:dp-06-11&r=agr
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