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- O impacto da produção de energia eólica no mercado de trabalho: uma abordagem PVARPublication . Koengkan, Matheus; Fuinhas, José Alberto; Marques, António CardosoEste artigo estuda o impacto da geração de energia eólica sobre o mercado de trabalho. O modelo Panel Data Vector Autoregressive (PVAR) foi utlizado para analisar um painel de nove países no período de 1992-2014. Os testes preliminares indicaram, a existência de cross-section dependence em todas a variáveis em logaritmos e primeiras diferenças, a estacionaridade das variáveis DLF e DLO, bem como a presença de efeitos fixos no modelo PVAR. Os resultados do modelo PVAR indicaram, que a produção de energia eólica tem um impacto positivo de 0.0002 sobre o mercado de trabalho.
- Are renewable energy policies upsetting carbon dioxide emissions? The case of Latin America countriesPublication . Fuinhas, José Alberto; Marques, António Cardoso; Koengkan, MatheusThe impact of renewable energy policies in carbon dioxide emissions was analysed for a panel of ten Latin American countries, for the period from 1991 to 2012. Panel autoregressive distributed lag methodology was used to decompose the total effect of renewable energy policies on carbon dioxide emissions in its short- and long-run components. There is evidence for the presence of cross-sectional dependence, confirming that Latin American countries share spatial patterns. Heteroskedasticity, contemporaneous correlation, and first-order autocorrelation cross-sectional dependence are also present. To cope with these phenomena, the robust dynamic Driscoll-Kraay estimator, with fixed effects, was used. It was confirmed that the primary energy consumption per capita, in both the short- and long-run, contributes to an increase in carbon dioxide emissions, and also that renewable energy policies in the long-run, and renewable electricity generation per capita both in the short- and long-run, help to mitigate per capita carbon dioxide emissions.