Regime-switching Levy processes integrate jump-diffusions and Markov regime-switchings. When they are coalesced with nonlinear partial differential equations of second order, the technique of viscosity solutions proves critical in the resolution process. However, applications to carbon policies...

Even though worldwide greenhouse gas emissions have significantly declined because of COVID-19 pandemic-related restrictions, emissions are likely to return to pre-pandemic levels if govern- ments do not prioritize policies that address climate change. An illustration is the new U.S....