Pestana Barros, Carlos; Gil-Alana, Luis A.; Payne, James E. - In: Energy Policy 41 (2012) C, pp. 822-826
fractional integration and autoregressive models with monthly data from 1981:1 to 2010:10. The results indicate that renewable … seasonality. The degree of integration is above 0.5 but significantly below 1.0, suggesting nonstationarity with mean reverting …