In this paper we consider the problem of pricing a perpetual American put option in an exponential regime-switching L\'{e}vy model. For the case of the (dense) class of phase-type jumps and finitely many regimes we derive an explicit expression for the value function. The solution of the...

This report summarizes the findings and recommendations of a three-year study on greenhouse gas (GHG) emissions and options for abatement in China over the coming decades.