Globalisation has been associated with increased international mobility of capital but less so of labour partly because of legal restrictions. In theory, labour mobility and trade are generally substitutes in respect of tradeable goods and services. There are, however, also instances of...

We ask why, in many circumstances and many environments, decision-makers choose to act on a time-regular basis (e.g. adjust every six weeks) or on a stateregular basis (e.g. set prices ending in a 9), even though such an approach appears suboptimal. The paper attributes regular behaviour to...