Experts estimate that physical deterioration of the planet and environment, they stress more serious. The destruction of forests is accelerating and the deserts are extending. Soil erosion undermines not only agricultural production but also winning means needed of existence for millions of...

This paper presents the role of alternative energy technologies in displacing fossil fuels as the world's primary energy source. To that end, a CAPM-GARCH multi-factor market model is used to investigate the relationship between returns on oil and alternative energy stocks. Results show that an...

We analyze a dynamic two-country trade model between a technological leading country and a technological follower economy. The output production in the follower economy needs a renewable natural resource as an essential input. We first prove that the innovation developed in the leading country...