In this paper I use a unique data set from Nicaragua to asses the behavior of persons who send money back home. I estimate a heteroskedastic Tobit with a known form of variance to estimate the correlation of the remitting decisions of migrants. Working, residing in a developed country and...

Wir analysieren die Determinanten der Zuschauernachfrage in der Fußballbundesliga in den Saisonen 2001/02 bis 2004/05, d.h. für insgesamt 1224 Spiele. Dafür spezifizieren wir ein ökonometrisches Modell, das die begrenzte Kapazität der Stadien und Heteroskedastizität berücksichtigt. Es...

The literature suggests that public research and development (R&D) subsidies may reduce market failures affecting private R&D investment caused by incomplete appropriability of knowledge and financial constraints due capital market imperfections. Drawing on the theory of investment under...

The real options investment theory shows that greater uncertainty about market revenues reduces current R&D investment by increasing the value of waiting. This paper presents empirical evidence that patent protection mitigates the effect market uncertainty on R&D investment.