In this paper, we investigate the optimal timing for deep geological disposal of nuclear waste. Our model is based on the real options approach to investment under uncertainty. In this context, the problem is similar to the optimal exercise policy for a perpetual American spread option. The...

In this study we re-examine the pricing of equity and the risk incentives of shareholders in levered firms. We derive a down-and-out call equity valuation model which rests on the assumption that shareholders choose the optimal investment and asset returns' volatility as a function of current...

The recent flows of immigrants to many countries has been categorised by both legal/illegal migrants. Such migration flows have occurred despite the presence of domestic unemployment of various categories of labour. It has also been observed that migration has lowered the reward of unskilled...