Boussemart et al. (2009, 2010, 2018) propose to identify a global α-returns to scale that allows to minimise the inefficiency of the production set. This paper extends this notion to the concept of specific α-returns to scale. In such case, it is possible to identify the impact of each input...

When a product, performance or service is rated or a behavioural response is sought, the alternatives typically do not have well-defined and universally understood demarcations. In this research, we address validity or inaccuracies in basic statistical inference based on such fuzzy data. In...

In response to Schmidt, Le, and Ilies' (2003) call for further assessment of transient error variance in measures of key individual difference variables, the current study examines transient error estimates for eight speeded cognitive ability scales and a composite scale. One hundred...