A dramatically large number of corner solutions occur when estimating by (Gaussian) maximum likelihood a simple model for panel data with random effects and autocorrelated errors. This can invalidate results of applications to panel data with a short time dimension, even in a correctly specified...

In the present paper the link between renewable energy generation and imports dynamics is explored in import demand equations. We find that renewable energy generation reduces import growth. Results display a considerable robustness.

In this paper we test for the gravitation of regulating return rates, namely those return rates yielded by capital goods incorporating the best methods of production. We define them within a vintage capital model taking into consideration capacity utilization, capital depreciation, and wages of...

The hypotheses of sectoral return rates on regulating capital either gravitating around or converging towards a common value is tested on data for various OECD countries by adopting two panel varying coefficient approaches. Our null hypotheses receive some empirical support, that turns out to be...

We test the hypotheses of industry return rates either gravitating around or converging towards a common value in Taiwan and New Zealand. We adopt various econometric approaches. The results are then nested in a meta-analytic framework together with those of the past literature. Various kinds of...