The EU steps up its efforts to curb its territorial CO2-emissions. It is planning to introduce a carbon border adjustment mechanism (CBAM) to level the playing field and to raise own resources. However, unilateral European climate policy action, whether shored up with a CBAM or not, can only...

Climate clubs, namely subgroups of countries implementing more ambitious and effective climate policies than others, may be the only practical approach to address the lack of incentives to reduce GHG emissions on the part of most, if not all, countries. In climate clubs, incentives to undertake...

Slowing global warming requires countries to reduce carbon emissions, which imposes costs on their economies. To be effective, most countries must agree collectively to participate (e.g., the Paris Agreement, COP26). However, every country has an incentive not to comply and still reap the...

In a dynamic, three-region environmental multi-sector general equilibrium model (called EMuSe), we find that carbon pricing generates a recession initially as production costs rise. Benefits from lower emissions damage materialize only in the medium to long run. A border adjustment mechanism...

A two-tier climate club exploits the comparative advantage of large countries to mete out punishments through trade, while taking their capacity to resist punishment as a constraint. Countries outside the coalition price carbon at a fixed fraction of the average carbon price adopted within the...

Global public goods pose great risks, especially when the lack of these goods may have devastating consequences. Climate protection is such a good and it faces a triple dilemma: the so-called Westphalian dilemma of sovereign nation states, a weakest-link dilemma as the success of climate...

The paper proposes an agreement structure that extends Nordhaus's (2015) climate club by adding a second tier. Countries outside the coalition are required to price carbon at a fixed fraction of the average carbon price adopted within the coalition, or face tariffs. Coalition countries abate...