Lecture 8: Transnational Policies Flashcards
two ways to deal with externalities
- carbon tax
- cap-and-trade
Pigou’s solution
carbon tax
Coase’s solution
pollution permits
Pigou’s solution: explanation
The government (the central planner) should intervene directly through centralized instruments:
- quantity regulation (bans)
- monetary tools (taxes / subsidies)
= carbon tax
Coase’s solution: explanation
The government (the central planner) should define and allocate entitlements and then, if reallocation is beneficial,
- either the market will operate through Coasean bargains
- or a firm will internalize the externality
= pollution permits
carbon tax
Tax on each unit of greenhouse gas emissions –> incentive to reduce pollution whenever doing so would cost less than paying the tax
what is the key with carbon tax
getting the tax level right
cap and trade
Designation of a maximum allowance of aggregate emissions –> if an installation exceeds its maximum allowance from other installations
cap-and-trade: industry
Cheaper compliance for industry in the early stages of the scheme
carbon tax: industry
Bigger initial hit to the balance sheet
carbon tax: price
Price of emitting a unit of pollution is set, but the total quantity of emission not
cap and trade: price
Certainty about the quantity of emissions but uncertainty about the cost of achieving these reductions
how much trading periods are there
3
first trading period (2005-2007)
The number of allowances, based on estimated needs, turns out to be excessive; consequently the price of first-period allowances falls to zero in 2007
second trading period (2008-2012)
The number of allowances is reduced by 6.5% for the period, but the economic downturn cuts emissions, and thus demand, by even more. This leads to a surplus of unused allowances and credits which weighs on carbon price