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Master's Dissertation
DOI
https://doi.org/10.11606/D.12.2010.tde-29102010-184406
Document
Author
Full name
Raquel Nadal Cesar Gonçalves
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2010
Supervisor
Committee
Alves, Denisard Cneio de Oliveira (President)
Belluzzo Junior, Walter
Madeira, Gabriel de Abreu
Title in Portuguese
Aquecimento global, investimentos e impactos agrícolas
Keywords in Portuguese
Agricultura
Aquecimento global
Função lucro
Abstract in Portuguese
Para medir o impacto de mudanças climáticas, acompanhadas variações do investimento agrícola, sobre a atividade agrícola brasileira, foram estimadas conjuntamente funções de receita e de custo de produtos e insumos agrícolas. Estas foram derivadas de uma função de lucro restrita, condicional a variáveis de clima e investimento. A pesquisa inova pela metodologia, diferente das demais empregadas anteriormente para o caso brasileiro, pela maior precisão dos dados de clima e pela inclusão do investimento agrícola como variável de mitigação dos efeitos gerados pela variação climática. Os resultados mostraram uma redução da lucratividade agrícola para o Brasil com o aumento da temperatura e precipitação no longo prazo, apesar de variarem conforme regiões. Saíram beneficiadas regiões mais ricas, em detrimento das mais pobres, cuja maior parte da produção agrícola é voltada para a subsistência. O investimento agrícola atuou como redutor desta tendência, de crescimento da desigualdade agrícola, ajudando a reverter apenas parcialmente o efeito do aquecimento.
Title in English
Global warming, investments and agricultural impacts
Keywords in English
Agriculture
Global warming
Profit function
Abstract in English
To measure the impact of climate changes along with changes in agricultural investments in Brazil's agricultural sector, this paper jointly estimates revenue functions for the outputs and cost functions for the inputs. These equations were derived from a restricted profit function conditional to climate and investment variables. The paper innovates by using the profit function approach to study Brazils agricultural sector. It also brings more precise data and adds investment as a relevant variable in the model. Results show a reduction in profitability as temperature and precipitation grow, but they are not homogeneous amongst the different regions. Richer regions seem to do better than the poor ones, which have a large part of their production focused on subsistence. Investment seems to act as a counterbalance to this trend of increasing agricultural inequality, partially reverting the global warming effects.
 
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RaquelNadal.pdf (307.40 Kbytes)
Publishing Date
2010-11-19
 
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