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...

The paper considers a climate change growth model with three R&D sectors dedicated to energy, backstop and CCS (Carbon Capture and Storage) efficiency. First, we characterize the set of decentralized equilibria: A particular equilibrium is associated to each vector of public tools which includes...

We analyze how a major negative shock to the producers of fossil fuels may lead to a shift from dirty to clean R&D along the supply chain. First, we develop a theoretical framework of directed technical change, showing that adjustment costs in R&D activity can lead fossil energy sector suppliers...

This paper explores how improved internet infrastructure impacts supply chains and economic activity, focusing on Türkiye. Using the expansion of fiber-optic networks and firm-to-firm transaction data, we find that better connectivity shifts input sourcing to well-connected regions and...

We investigate empirically whether the market value of electric vehicles, which have rapid technological progress, decline faster over their lifetime than gasoline vehicles, which is a mature technology. We use novel data from the market with the highest market shares for electric vehicles in...

The costs of low-carbon energy fell dramatically over the past decade, leading to rapid growth in its deployment. However, many challenges remain to deploy low-carbon energy at a scale necessary to meet net zero carbon emission targets. We argue that developing complementary technologies and...

Green innovation is essential for climate change mitigation, but not all innovative projects deliver equal social value. We consider innovator heterogeneity in a model where the policy maker cannot observe innovation quality and directly subsidize the socially most valuable green innovations. We...

The optimal transition to a low-carbon economy must account for adjustment costs in switching from dirty to clean capital, technological progress, and economic and climatic shocks. We study the low-carbon transition using a dynamic stochastic general equilibrium model with emissions abatement...

We propose a theory of climate-policy motivated foreign intervention to study different forms of international climate governance in the presence of power imbalance. Foreign countries have at least three options to intervene in another country's domestic climate policy: i.) Agreements with...

Preserving heritage is an important part of maintaining collective identity for future generations. Yet, culturally defined notions of "heritage" or "character", in the context of the climate crisis, may be a barrier to individual and collective climate action to tackle a much more existential...