Energy Price Reform: A Guide for Policymakers Price Reform: A Guide for Policymakers Ian Parry ......
Transcript of Energy Price Reform: A Guide for Policymakers Price Reform: A Guide for Policymakers Ian Parry ......
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Energy Price Reform: A Guide for Policymakers
Ian Parry Fiscal Affairs Department, IMF
Environmental Defense Fund, February 26, 2015
Disclaimer: The views expressed herein are those of the author and should not be attributed to the IMF, its Executive Board, or its management.
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Major externalities and designing fiscal policies to address them
Measuring externalities
Corrective tax estimates
Implications for carbon pricing
Plan of Talk
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Based On
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Major Externalities and How to
Address Them
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Carbon emissions projected warming 3-4OC by 2100 (with tail risks)
Local (outdoor) air pollution
> 3 million premature deaths a year Road congestion/accidents
London motorists impose congestion cost of $40/gal. accidents cause 1.2 million deaths
Other externalities beyond our scope:
opaque (e.g., energy security, indoor air pollution) smaller in magnitude (e.g., oil spills)
Major Environmental Problems
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Effective if targeted at the right base
Cost effective
if revenues used productively
Balance environmental benefits and costs if tax rates aligned with external costs
Fiscal policies should have three elements…
Fiscal Instruments must be Center Stage
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= CO2 damage/ton × CO2 emissions factor
e.g., straightforward extension of motor fuel excises
Or price emissions (but administration more complex)
1. Fuel Charges for Carbon Emissions
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Problem is fine particulates produced directly indirectly from SO2, NOx
= damage/ton × emissions factor (summed over
emissions) with rebates for control technologies or price emissions (if administration feasible)
2. Charges for Local Air Emissions
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Excessive because motorists do not consider congestion costs pedestrian injuries, property damage, etc.
Ideal policy: mileage-based charges
for busy roads (congestion) varying with driver risks (accidents) on axle weight of trucks (road damage)
Interim: reflect externalities in fuel taxes
but reduce ~50% (mileage portion of fuel response)
3. Charges for Congestion, Accidents
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…are needed, such as: public infrastructure investments for related market failures (e.g., technology spillovers)
But should not detract from getting prices right
corrective taxes may yield biggest welfare gains other policies don’t affect efficient energy taxes
Other Policies…
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Measuring Externalities
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No ‘correct’ tax all should agree on but provide transparent framework accommodates different views (disciplines debate) robust direction for reform spreadsheet tool for sensitivity analysis
Uncertainties/Controversies
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$35/ton CO2 (US govt.)
recent EU ETS prices < $10/ton
Damages from Carbon
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Population exposure power plant location → number of people in proximity
Exposure → mortality risk
evidence from Global Burden of Disease
Monetize health effects evidence on inc. elast. of VSL (OECD)
Damage per unit of fuels
country-specific emissions factors
Air Pollution Damages from Coal
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Nationwide average travel delays extrapolated city-level database → average delay = F(
transportation indicators)
Average delay → marginal delay functional forms from transport engineering literature
Monetize
value of time = 60 percent of market wage
Congestion
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Corrective Taxes
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Corrective Taxes on Coal, 2010
-5 0 5 10 15 20 25
Australia
Brazil
Chile
China
Germany
India
Indonesia
Israel
Japan
Kazakhstan
Mexico
Poland
South Africa
South Korea
Thailand
Turkey
United Kingdom
United States
corrective coal tax, $/GJ
carbon local pollution current tax
World price
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Corrective Taxes on Natural Gas, 2010
World price
-2 -1 0 1 2 3 4 5
Australia
Brazil
Chile
China
Egypt
Germany
India
Indonesia
Israel
Japan
Kazakhstan
Mexico
Nigeria
Poland
South Africa
South Korea
Thailand
Turkey
United Kingdom
United States
corrective natural gas tax, $/GJ
carbon local pollution current tax
World price
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Corrective Taxes on Gasoline, 2010
-0.30 0.00 0.30 0.60 0.90 1.20
Australia
Brazil
Chile
China
Egypt
Germany
India
Indonesia
Israel
Japan
Kazakhstan
Mexico
Nigeria
Poland
South Africa
South Korea
Thailand
Turkey
United Kingdom
United States
corrective tax, $/liter
carbon local pollution accident congestion current tax
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Corrective Taxes on Diesel, 2010
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Health 63 percent reduction in air pollution deaths
Climate
23 percent reduction in CO2 emissions
Fiscal 2.6 percent of GDP in new revenue
Global Benefits from Getting Energy Prices Right at
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Implications for Carbon Pricing
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Welfare gains from near term CO2 pricing include (non-internalized) domestic envir. co-benefits
How much (second-best) carbon pricing is in
countries’ own national interests?
If Inertia in Getting Energy Prices Right….
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Net Benefit from CO2 Tax (Exc. Climate Benefit)
Demand
Supply
Fuel consumption
Priceper unit
prior fuel tax
cost of carbon chargeexc. dom. envir.benefits
net benefits fromcarbon charge
carbon taxdomestic co-benefitsper unit
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Nationally Efficient CO2 Prices from Co-Benefits
0 20 40 60 80 100
China
United States
Russia
India
Japan
Germany
Korea
Canada
United Kingdom
Mexico
South Africa
Indonesia
Italy
Australia
France
Spain
Poland
Top 20
$/ton CO2
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Raises questions about
free rider argument need for international transfers for large developing
country emitters argument for uniform carbon pricing welfare gains from differentiated vs. uniform pricing 23
percent greater case for agreements over price floors not levels
Implications for International Agreements
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Finance ministries have key role championing environmental taxes administration putting revenues to good use
Concluding