We use data on British football managers and teams over the 1994-2007 period to study substitution and complementarity … equal, managers who themselves played at a higher level raise the productivity of less-skilled teams by more than that of … subordinates the skills needed to succeed, since less skilled players have more to learn. We also find that managers with more …

We estimate calories available to workers' households in the USA, Belgium, Britain, France and Germany in 1890/1. We … estimate that households in the USA, on average, had about five hundred daily calories per equivalent adult more than their … French and German counterparts, with Belgian and British workers closer to the USA levels. We ask if that energy bonus gave …