Corruption perceptions are commonly utilized as essential information to measure corruption across countries and regions. In this paper we consider the hypothesis that respondents to corruption perception questions utilize different response scales in their answers, i.e. for identical levels of...

This paper presents a summary of the main results and conclusions achieved in the DISS (Direct Solar Steam) project. The test facility implemented at the Plataforma Solar de Almería (PSA) in 1997–8, the so-called PSA DISS test facility, was operated for more than 3000 h in 1999–2000 and...