In the last decade the ownership structure of Australia's life insurance industry has undergone a fundamental change. Traditionally, the sector had been dominated by a group of large mutual associations which had historically been the market leaders. In the space of less than a decade, this form...

Using a substitution property of worker’s types (productivity and time preference), we propose an explanation for both fixed-wages and wage differentials. Fixed-wages result in bunching at the optimum. Equally productive workers with different time preference accept different wages.