Automatic methods for MT evaluation are often based on the assumption that MT quality is related to some kind of distance between the evaluated text and a professional human translation (e.g., an edit distance or the precision of matched N-grams). However, independently produced human translations are necessarily different, conveying the same content by dissimilar means. Such legitimate transla...

In real life, punishment is often implemented only insofar as punishers are entitled to punish and punishees deserve to be punished. We provide an experimental test for this principle of legitimacy in the framework of a public goods game, by comparing it with a classic (unrestricted) punishment institution. A significant advantage of our institution is that it rules out antisocial punishment, a...