Studies of the impact of mitigation policies on sectors can be divided into those which adopt a general approach and cover all the sectors of the economy in question, and those which concentrate on one sector or group of sectors, leaving aside indirect effects on the rest of the economy. The general studies are discussed in 9.2.1, and the sector studies are considered in the sections that follow.
The studies can also be arranged according to the methodology of the analysis:
The general studies tend to be top-down, although there have been major comprehensive bottom-up studies (e.g., Krause et al., 1992). Many of the individual sector studies are bottom-up or cost-benefit. The top-down and bottom-up methodologies are compared in Section 9.4.1.1.
These studies tend to use large-scale models as a framework for the analysis.
Important differences between the studies arise from the type of model being
used (computable general equilibrium (CGE) or econometric), the method chosen
for the recycling of any tax revenues, and the treatment of the world oil market.
Two topics, the effects of carbon taxes (and more recently traded emission permits)
and the removal of energy subsidies, have been assessed in some detail.
Table 9.1 gives some details of studies of mitigation policies for which sectoral effects are available. These are all at a country or world-region level (e.g., the European Union). The table also shows the outcomes of different policies on carbon dioxide (CO2) emissions, GDP and sectoral outputs. For some studies a range of outcomes is shown, corresponding to the range published for GDP depending on some critical assumption, such as the method chosen to recycle government revenues. The effects are shown as differences from the reference scenario or the base in the final year of the projection. Note that the macroeconomic results of these studies are covered in Chapter 8.
Table 9.1: Some multisectoral studies of carbon dioxide mitigation | ||||||||
Region or reference country |
China
Garbaccio et al. (1999) |
EU-6
DRI (1994) |
EU-11
Barker (1999) |
New |
UK
Cambridge Econo- metrics (1998) |
USA
CRA and DRI (1994) |
USA
Jorgenson et al. (1999) |
USA
McKibbin et al. (1999) |
Funding body |
US Dept of
Energy |
EC
|
EC
|
NZ Min
of Environ- ment |
FFF-FOE
|
Electric
Power Research Institute |
|
US EPA
|
Model |
|
DRI-models
|
E3ME
|
ESSAM
|
MDM-E3
|
DRI
|
JWS
|
G-cubed
|
Model type |
Static CGE
|
Macro
|
Macro
|
CGE
|
Macro
|
Macro
|
Dynamic
CGE |
Dynamic
CGE |
Policy |
Carbon tax
|
Carbon tax
|
Carbon tax
|
Carbon &
energy taxes |
Carbon tax
|
Carbon tax
|
Emission
permits |
Emission
permits |
Recycling mode |
All other
taxes |
Employer
taxes |
Employer
taxes |
Corporate
tax |
Employer
taxes |
Lump-
sum |
Personal
income |
Lump-
sum |
Industries |
29
|
20-30
|
30
|
28
|
49
|
About 100
|
35
|
12
|
Fuel types |
4
|
17
|
11
|
4
|
10
|
4
|
4
|
5
|
Period |
1992 to 2032
|
1992 to 2010
|
1970 to 2010
|
1987 to 1997
|
1960 to 2010
|
1990 to 2010
|
1996 to 2020
|
1996 to 2020
|
Effect year |
2032
|
2010
|
2010
|
1996/97
|
2010
|
2010
|
2020
|
2010
|
Model run |
15%
|
INT
|
Mult-coord.
|
324
|
C72F11
|
$100/tC
|
Personal
|
Unilateral
US |
CO2 GDP |
-15%
+1% |
-15%
+0.9% |
-10%
+1.4% |
-46%
+4.6% |
-4.4%
+0.1% |
-15.3%
-2.3% |
-31%
+0.6% |
-29.6%
-0.7% |
Output: coal |
-19%
|
Energy -7%
|
-8%
|
-24%
|
0%
|
-25%
|
-52%
|
-40%
|
: refined oil |
-2 |
|
-17 |
-22 |
-0 |
-6 |
-4 |
-16 |
: gas |
|
|
-4 |
-41 |
-4 |
-18 |
-25 |
-14 |
: electricity |
+3 (year 1) |
|
-3 |
-17 |
-1 |
-17 |
-12 |
-6 |
: agriculture |
+0 (year 1) |
-7 |
+3 |
+4 |
+0 |
|
+4 |
-1 |
: forestry |
.. |
.. |
.. |
+5 |
.. |
.. |
.. |
-1 |
: food, etc. |
+0 (year 1) |
Manufac- |
+2 |
+3 |
+0 |
|
+5 |
Nondur- |
: chemicals |
+1 (year 1) |
|
+2 |
+6 |
-0 |
|
-0 |
.. |
steel |
+1 (year 1) |
|
+1 |
-26 |
-1 |
-5 |
-3 |
Durables 1 |
: construction |
+1 (year 1) |
.. |
+1 |
+0 |
+0 |
|
+1 |
.. |
: transport |
+1 (year 1) |
-2 |
+0 |
+5 |
+0 |
-4 |
+1 |
-2 |
: services |
+0 (year 1) |
+1 |
+1 |
+6 |
+0 |
-2 |
+3 |
-0 |
: consumers |
+0.8% |
|
|
+6.7% |
+0.1% |
-1.9% |
+0.7% |
-0.4% |
Notes:
(1) Multisectoral models are defined as those in which GDP is divided into production sectors. Definitions of sectors differ between studies. (2) .. denotes not available or not reported. |
Several conclusions are well established in this literature.
It is worth placing these results and the tasks faced by mitigation policy in an historical perspective. CO2 emissions have tended to grow more slowly than GDP in a number of countries over the last 40 years (Proops et al., 1993; Price et al., 1998; Baumert et al., 1999). The reasons for such trends vary but include:
These trends will be encouraged and strengthened by mitigation policies.
Other reports in this collection |