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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Indutores de impacto ambiental : uma an?lise para a Am?rica Latina e pa?ses membros da OCDE

Garcia, Patr?cia Lazzarotti 31 March 2014 (has links)
Made available in DSpace on 2015-04-14T14:27:10Z (GMT). No. of bitstreams: 1 459070.pdf: 276897 bytes, checksum: 6b20e990146fe5ab5682e04406b29e67 (MD5) Previous issue date: 2014-03-31 / The aim of this work is to verify and analyze the driver of environmental impact in Latin America and OECD countries member for the period 2000-2008 .To this end, we used the Stochastic Impacts by Regression on Population , Affluence and Technology ( STIRPAT ) model widely used in the literature , which presupposes that the population, affluence and technology are the main drivers of environmental impact . This model allows the use of statistical methods and the inclusion of other explanatory variables to the model . Were used panel data with fixed effects method for the study . Four models , where the measure used was the environmental impact ecological footprint analysis for Latin America and OECD , and CO2 emissions , also for Latin America and OECD were estimated . The estimation results corroborate in some respects with the current literature, demonstrating that population and income are the most important variables to explain the environmental impacts, whether for developed countries, represented here by the OECD, is for developing countries, as in case of Latin American countries. The innovation of labor is associated with concomitant use of this model for analysis of OECD countries and Latin America. / O objetivo do presente trabalho ? verificar e analisar os indutores de impacto ambiental nos pa?ses da Am?rica Latina e nos pa?ses membros da Organiza??o para a Coopera??o e Desenvolvimento Econ?mico (OCDE) para o per?odo de 2000 a 2008. Para tal, foi utilizado o Stochastic Impacts by Regression on Population, Affluence and Technology (STIRPAT), modelo amplamente utilizado na literatura, que tem como pressuposto que a popula??o, a aflu?ncia e a tecnologia s?o os principais indutores de impacto no meio ambiente. Este modelo permite a utiliza??o de m?todos estat?sticos e a inser??o de outras vari?veis explicativas ao modelo. Para o estudo foram utilizados dados em painel, com o m?todo de efeitos fixos. Foram estimados seis modelos, onde as medidas de impacto ambiental utilizadas foram a pegada ecol?gica, emiss?o de CO2 total e emiss?o de CO2 per capita para a an?lise da Am?rica Latina e OCDE. Os resultados da estima??o corroboram em alguns aspectos com a literatura vigente, demonstrando que a popula??o e a renda s?o as vari?veis mais importantes para explicar os impactos ambientais, seja para pa?ses desenvolvidos, aqui representado pelos membros da OCDE, seja para pa?ses em desenvolvimento, como no caso dos pa?ses Latino americanos . A inova??o do trabalho est? associada ? utiliza??o deste modelo para an?lise concomitante dos pa?ses da OCDE e Am?rica Latina.
2

Indutores de impacto ambiental : um estudo sobre a Am?rica Latina

Silva, Caroline Silva da 26 August 2015 (has links)
Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2015-10-22T10:17:11Z No. of bitstreams: 1 475842 - Texto Completo.pdf: 996117 bytes, checksum: c5bf978441294fa0f5725e6b4fefb088 (MD5) / Made available in DSpace on 2015-10-22T10:17:11Z (GMT). No. of bitstreams: 1 475842 - Texto Completo.pdf: 996117 bytes, checksum: c5bf978441294fa0f5725e6b4fefb088 (MD5) Previous issue date: 2015-08-26 / This survey estimated through STIRPAT model and panel data which inductors of the total CO2 emissions for Latin America, from 1970 to 2010. Therefore, the option chosen was the estimation of four models, one without fixed effects and others with fixed effects for countries, years and years and countries. As a result we obtained that the total population and urban population are the main drivers of total CO2 emissions, while the economically active population has a negative effect on CO2 emissions. / A presente pesquisa estimou atrav?s do modelo STIRPAT e dados em painel quais os indutores da emiss?o total de CO2 para a Am?rica Latina, no per?odo de 1970 a 2010. Para tanto, a op??o escolhida foi a estima??o de quatro modelos, um sem efeitos fixos e os demais com efeitos fixos para pa?ses, anos e pa?ses e anos. Como resultado obtivemos que popula??o total e popula??o urbana s?o os principais indutores da emiss?o total de CO2, enquanto que a popula??o economicamente ativa possui efeito negativo sobre a emiss?o de CO2.

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