Although skill shortages are often portrayed as a significant problem for the Australian economy, there is surprisingly little evidence about their prevalence, causes and consequences. It is difficult to find robust evidence about where skill shortages occur, why they occur, what businesses try to do about them and whether their responses are…

The gold standard in making causal inference on program effects is a randomized trial. Most randomization designs in education randomize classrooms or schools rather than individual students. Such "clustered randomization" designs have one principal drawback: They tend to have limited statistical power or precision. This study aims to…

Global economic transformations have never been as dramatic as in the twentieth century. Most countries have experienced radical changes in the standards of income per capita, technology, fertility, mortality, income inequality and the extent of democracy in the course of the past century. It is the goal of many disciplines--economics, history,…