This paper proposes a straightforward, easy to implement approximate F-test which is useful for testing restrictions in multivariate regression models. We derive the asymptotics for our test statistic and investigate its finite sample properties through a series of Monte Carlo experiments. Both...

This study correlates experimental values with modelled values of global (KT) and diffuse (KD) clearness index in Athens, Greece. The experimental values come from measurements of daily global and diffuse solar irradiation on horizontal surface, while the modelled ones are from linear regression...

Understanding the current business cycle of a nation is essential for individuals, enterprises, and the government in order to make appropriate strategic decisions and take advantage of business opportunities. At a specific period of economic activities, the business cycle develops moderately...

This paper studies the importance of the absorption capacity of innovative companies and the effect of innovation barriers on it. The management of absorption capacity investment as an innovation promoter is also reviewed and the implications are exposed to the level of performance of the...