We present a simple discrete-time version of the continuous-time agency model under mean-volatility joint ambiguity uncertainties, which conveniently captures a number of important properties of optimal contracts without having to rely on complex continuous-time mathematical issues. The...

We first review research about income and earnings volatility and second provide new UK evidence about the latter using high quality administrative record data. The USA stands out as a high volatility country relative to the UK and other high-income countries, but volatility levels have remained...