The present work focused on estimating the cross-correlation between the time series of agricultural production variables and the variables of the Space Weather Wolf Number (W) in the United States, in both cases the annual averages were processed. The Fast Fourier Transform (FFT) methodology...

Numerous issues, such as technological and market uncertainty, and financial role-players’ avoidance of long-run investment in renewable energy technologies, have deterred investments in innovation. Therefore, we investigate the direct and indirect (inter-firm spillover) effects of government...

As countries all over the world increase and plan to increase their dependence on renewable sources of energy, it becomes essential to gain an informed understanding of how productive those can be. Here we utilize multiple official datasets to empirically gauge the actual productivity of wind...

For all its evident benefits, China’s “gift” of cheap solar panels imposed costs as well. Most critics of China have focused on the global distribution of manufacturing jobs created by the growth of the solar industry. An even more significant impact, though, has been overlooked: a change...