We model an environmental policy problem with two representative firms in two countries (one for each country). Firms are subject to environmental taxation, aimed at reducing CO2 emissions, and a unilateral technological spillover takes place: one of the two countries (innovating country) is...

I model an economy featuring two representative firms in two countries, one in each country, where one firm innovates and generates technological unilateral spillovers. I analyze a partial equilibrium model in two different scenarios: in the first one, the innovating firm is under a domestic...