I: The Model and Methodology -- 1. Introduction -- 2. The Model -- 3. The Parameters and the Admissible Parameter Space -- 4. Analysis of Identification -- 5. A Remark on Estimation -- 6. An Example: Dynamic vs. Contemporaneous Models -- II: White-Noise Shock; White-Noise Exogenous Variables --...

Data sets of total and direct solar irradiation at Valencia (Spain) measured during the years 1990–1991 have been used to analyze diverse methods of estimating the daily values and monthly average daily values of the diffuse fraction of solar radiation from the ratio of the total to the...