[...]To explore these questions, we present the firstsystematic analysis of the determinants and impact of thesovereign credit ratings assigned by the two leading U.S.agencies, Moody’s Investors Service and Standard andPoor’s.1 Such an analysis has only recently become possibleas a result of...

The computational properties of an econometric method are fundamentaldeterminants of its importance and practical usefulness, in conjunction withthe method’s statistical properties. Computational methods in econometricsare advanced through successfully combining ideas and methods in...

Truancy is often seen as irrational behaviour on the part of school ageyouth. This paper takes the opposite view and models truancy as thesolution to a time allocation problem in which youths derive currentreturns from activities that reduce time spent at school. The model isestimated using a US...