In a model where firms face a continuous choice of how much to invest in environmental innovation, we show that an ever stricter environmental policy does not always lead to ever cleaner production methods and ever lower production of polluting goods. It does so when the abatement technology is...

Green bonds allow firms to commit to climate-friendly projects. Equity investors react positively to their announcement. Based on prior empirical studies, we suggest that green bond commitments help managers signal the profitability of their green projects and that they do so because they are...