MACROECONOMIC ADJUSTMENT AND POVERTY 759
In presenting the simulation results, we focus on GDP growth, investment, and foreign savings, as well as income distribution.
To facilitate comparison, our functional income distribution distin- guishes between four groups: urban nonpoor, urban poor, rural
nonpoor, and rural poor. These groups are aggregated, according to the level of income, from those found in the income distribution
of the underlying Social Accounting Matrices SAMs.
9
Their in- comes per capita in local currency are found in Appendix Table
2A, along with shares of revenue from factors of production and transfers.
10
4. ADJUSTING TO THE ECONOMIC CRISIS
Each of the four countries in this study suffered a terms-of- trade shock, concurrent with a tightening of world capital markets
and foreign aid inflows. We, therefore, frame our analysis around the policy response to the adverse shocks experienced by most
countries in sub-Saharan Africa in the late 1970s and early 1980s.
In particular, to facilitate comparison between countries, the same terms-of-trade shock is modeled for each country: a 10-
percent decline in the world price of the major export good.
11
In addition, foreign capital inflows are reduced by an amount equal
to 10 percent of base year exports.
4A. Simulating Alternative Policies
In the early stages of confronting their economic crises, many African countries avoided necessary adjustments in nominal and
real exchange rates by rationing foreign exchange, often through the imposition of import quotas, a policy we refer to as de facto
adjustment. In Simulation I, we model this policy alternative by an implicit tariff on imports equivalent to a premium on foreign
9
For details on the SAMs, see Dorosh and Essema-Nssah 1991, Dorosh et al. 1991, Gauthier and Kyle 1991, and Jabara, Lundberg, and Sireh Jallow 1992.
10
Note that in the Gambia and Niger models, the urban poor are classified according to their incomes relative to other urban households rather than vis a` vis a national poverty
standard. Thus, average incomes of the urban poor in these countries are higher than average incomes of the rural nonpoor.
11
World prices were reduced for the following export commodities: Cameroon export crops—mainly coffee and cocoa, The Gambia groundnuts and groundnut products,
Madagascar export crops—mainly coffee, vanilla, and cloves, and Niger uranium.
760 P. A. Dorosh and D. E. Sahn
exchange for imports.
12
With the quota rents accruing to high- income urban households. The level of the implicit tariff is set so
as to keep the real exchange rate fixed at the preshock level, thus highlighting the role of real exchange rate depreciation or the
lack of it in adjustment.
In Simulation II, we model adjustment with a liberalized foreign exchange regime, allowing the real exchange rate to depreciate
in the wake of the shock. In reporting the results, we compare the simulated outcomes from Simulation II adjustment through
real devaluation with Simulation I de facto adjustment. Next, we examine variants on Simulation II by allowing the real ex-
change rate to adjust while reducing government spending Simu- lation III. Finally, we model the imposition of taxes on foreign
trade to help maintain government revenues in the face of weaken- ing world prices for exports Simulation IV. In this last simulation,
no exogenous change is made in government expenditures. Be- cause Simulations III and IV are variants of the real exchange
rate devaluation simulation, these results are presented relative to Simulation II.
In all cases, the results are anchored to the same macroeconomic constraint: the current account deficit is held constant across the
simulations. Because each of the simulations are designed to meet the same macroeconomic adjustment objectives, the relative out-
comes are comparable across countries in terms of the policies undertaken and, within a country, in terms of the macroeconomic
target that alternative means of adjustment will achieve.
Simulation I: de facto adjustment. Table 2 shows the effects of
the external shocks with de facto adjustment. Not surprisingly, real GDP falls sharply in all countries 1.8 to 3.6 as lower export
earnings and foreign capital inflows reduce aggregate demand and incomes. By construction of the simulations, there is no change
in the real exchange rate. The premium on foreign exchange that helps reduce import demand and equilibrate the external accounts
ranges from 14.2 percent in Niger to 35.1 percent in Madagascar.
Structural characteristics of the economies, including the size of the external shock relative to investment spending and overall
GDP, explain the variations in foreign exchange premiums across countries. For all four countries, the external shock measured in
terms of lost foreign exchange earnings is between 9.7 and 12.0
12
See de Melo and Robinson 1982.
MACROECONOMIC
ADJUSTMENT
AND POVERTY
761
Table 2: Simulation I: De Facto Adjustment—Impose Import Quotas
Percentage change
a
Cameroon The Gambia
Madagascar Niger
Real GDP 21.83
23.55 22.32
22.94 ConsumptionGDP
22.09 22.76
22.49 21.33
Total investmentGDP 20.89
26.37 21.03
23.78 Government recurrent expendituresGDP
0.00 0.00
0.00 0.00
Government revenueGDP 20.73
20.97 20.88
20.12 ExportsGDP
b
22.21 0.75
20.98 21.25
ImportsGDP
b
23.36 24.83
22.18 23.45
Change in foreign savingsbase year exports 210.00
210.00 210.00
210.00 Prices
Foreign exchange premium level in percent 26.83
16.97 35.10
14.22 Real exchange rate
0.00 0.00
0.00 0.00
Real wage rates Skilled labor
29.97 211.01
219.58 211.00
Semiskilled labor 29.08
27.87 217.33
— Unskilled labor
212.02 24.64
28.27 25.44
Real incomes Urban nonpoor
21.14 4.32
16.33 14.33
Urban poor 28.81
28.75 213.51
26.68 Rural nonpoor
210.09 26.51
25.61 24.09
Rural poor 210.04
25.71 25.25
24.67 Small farm—export-oriented
25.77 24.17
Total 23.22
23.78 23.23
21.52 Source:
Model simulations.
a
Percentage change relative to base SAM.
b
Exports and imports valued at base year real exchange rate.
762 P. A. Dorosh and D. E. Sahn
percent of the initial level of imports. However, for The Gambia the most open economy considered, the ratio of the shock to
GDP is 6.3 percent, compared to 1.7 to 3.5 percent for the other three countries. Given the large reduction in foreign savings and
export earnings, total savings in The Gambia declines steeply, and along with it, total investment and demand for services of the
labor-intensive construction sector. Real wages for both skilled and unskilled urban workers fall, helping to reduce the price of
hotel and other services and permitting an increase in tourism exports. Thus, the loss of foreign exchange revenues is partially
offset, so that a premium of only 17.0 percent is sufficient to restore equilibrium in foreign exchange markets. In Niger, the
initial foreign exchange shock is also relatively large, 3.5 percent of GDP, so that investment and consumer demand for livestock
falls. As a result, the exportable surplus of livestock rises, softening the decline in foreign exchange availability, so that the simulated
foreign exchange premium is only 14.2 percent. In contrast, with Madagascar’s very closed economy, the shock is a small 1.7 percent
of GDP, so there is little impact on savings and thus total invest- ment. Because investment demand for manufactured imports
which accounts for a large share of total imports changes little, the bulk of the adjustment must be borne by a reduction in con-
sumer demand. To achieve this shift in demand, a large increase 35.1 percent in the exchange rate premium and the price of
imported manufactured goods is required.
The price elasticity of the export good suffering the simulated terms-of-trade shock also significantly affects the size of the pre-
mium by influencing he extent of the loss of foreign exchange earnings through decreased volume of exports. In Niger, uranium
export supply is very inelastic so the 10-percent decline in the price of uranium reduces total uranium revenues by only 11.7
percent. The 10-percent decline in world prices of Madagascar’s export crops coffee, vanilla, cloves reduces export revenues from
these crops by 17.1 percent.
Nearly all household groups suffer as the effects of reduced export earnings and lower foreign capital inflows reverberate
throughout the economy. The decline in the output of the services sectors and reduced agricultural incomes due to the declines in
overall demand lead to a decreased demand for labor, and to lower real wages and returns to land and agricultural capital in
all countries. Declines in returns to informal sector capital also contribute to reduced incomes of the urban poor. As a group, the
MACROECONOMIC ADJUSTMENT AND POVERTY 763
urban high-income households actually see a rise in their real incomes in this scenario, however, because they collect the rents
associated with the import quotas. Of course, in practice, it is likely that only a small number of the urban elite would gather the
lion’s share of the rents. Urban nonpoor households not receiving rents suffer a decline in real incomes in this scenario.
Simulation II: Adjustment through real exchange rate deprecia- tion:
in the second simulation we allow the real exchange rate to adjust freely to the negative terms-of-trade shocks to restore the
equilibrium in the external accounts. Although most nominal deval- uations are actually accompanied by changes in fiscal policies e.g.,
cuts in government spending or trade policies e.g., reductions in trade taxes, such policies remain unchanged in this simulation.
Compared with the de facto adjustment simulation Simulation I, liberalization of foreign exchange markets leads to a real exchange
rate depreciation of 15.7 percent in Cameroon, 4.3 percent in The Gambia, 11.5 percent in Niger, and 9.2 percent in Madagascar
Table 3.
13
Real GDP is also slightly higher by 0.2 to 1.3 in all countries. The depreciation of the real exchange rate spurs
exports by 3.2 and 3.5 percent in Niger and The Gambia, respec- tively, and by 9.0 percent in Cameroon and 10.4 percent in Mada-
gascar. This increase in export earnings permits a higher level of imports as well.
But what of the effect of such policies on income distribution? As intimated above, much of the early writing on the deleterious
impact of adjustment focused on the harmful effects of exchange rate adjustments on the poor, who were assumed to be net consum-
ers of tradable staple foods and net suppliers of labor, and for whom a combination of greater unemployment and lower wages
would have adverse consequences. In practice, the results indicate that with the removal of the quota rents, the urban nonpoor
households suffer a loss in real incomes by 4.6 to 20.4 despite the overall increase in economic activity and an increase in real
wages for skilled labor Table 4. Lower incomes for the urban
13
Although nominal exchange rates vis-a`-vis the French franc were fixed for CFA countries such as Cameroon and Niger during the 1980s, changes in real exchange rates
did occur through differential rates of inflation between each CFA country and its trading partners, as well as through changes in the nominal exchange rate between the French
franc and other currencies. Moreover, a combination of import tariffs and export subsidies can substitute for a nominal exchange rate devaluation in changing the relative price of
tradables and non-tradables in the economy.
764
P. A.
Dorosh
and D.
E. Sahn
Table 3: Simulation II: Real Devaluation
Percentage change
a
Cameroon The Gambia
Madagascar Niger
Real GDP 0.68
1.25 1.28
0.23 ConsumptionGDP
0.85 1.13
0.74 20.50
Total investmentGDP 20.17
0.12 0.54
0.71 Government recurrent expendituresGDP
0.00 0.00
0.00 0.00
Government revenueGDP 20.20
0.04 0.93
20.21 ExportsGDP
b
2.25 2.04
1.16 0.68
ImportsGDP
b
2.25 2.04
1.16 0.68
Change in foreign savingsbase year exports 0.00
0.00 0.00
0.00 Prices
Foreign exchange premium level in percent 0.00
0.00 0.00
0.00 Real exchange rate
15.66 4.27
11.46 9.16
Real wage rates Skilled labor
6.88 8.62
18.32 5.43
Semiskilled labor 6.15
9.48 6.75
— Unskilled labor
9.77 1.88
6.97 2.90
Real incomes Urban nonpoor
215.92 24.61
220.36 218.92
Urban poor 5.51
8.37 11.56
2.94 Rural nonpoor
7.91 2.88
4.23 2.13
Rural poor 7.39
2.78 4.53
2.69 Small farm—export-oriented
5.02 2.52
Total 1.26
1.84 0.84
21.71 Source:
Model simulations.
a
Percentage change relative to Simulation I.
b
Exports and imports valued at Simulation I real exchange rate.
MACROECONOMIC ADJUSTMENT AND POVERTY 765
Table 4: Simulation II: Income Breakdown Percentage Change
Urban Urban
Rural Rural
nonpoor Poor
nonpoor Poor
Total
Cameroon Formal skilled labor
0.761 1.137
0.855 0.209
0.718 Formal semi-skilled labor
1.198 1.751
1.597 0.402
1.280 Formal unskilled labor
0.229 1.538
0.641 0.679
0.540 Informal labor
0.158 1.891
2.916 7.108
2.881 Land
0.000 0.000
0.909 0.335
0.553 Capital
1.076 0.000
0.293 0.000
0.455 Government transfers
0.357 0.000
0.045 0.000
0.123 Firm transfers
0.831 0.000
0.226 0.000
0.352 Rents
220.770 0.000
0.000 0.000
25.716 Subtotal
216.160 6.317
7.482 8.733
1.186 Consumer price effect
0.286 20.756
0.398 21.231
0.072 Total
215.770 5.513
7.910 7.394
1.259 The Gambia
Skilled labor 3.005
3.476 0.238
0.105 1.833
Unskilled labor 2.059
4.012 0.845
1.260 2.075
Largeholder land 0.003
0.000 0.280
0.000 0.060
Smallholder land 0.000
0.005 0.000
0.032 0.009
Informal capital 2.561
0.678 0.202
0.171 1.039
Housing 0.056
0.068 0.237
0.299 0.156
Transfers 0.118
0.103 0.936
0.361 0.345
Rents 211.683
0.000 0.000
0.000 23.623
Subtotal 23.880
8.341 2.738
2.228 1.893
Consumer price effect 20.763
0.026 0.140
0.538 20.073
Total 24.614
8.369 2.881
2.777 1.836
Madagascar Skilled labor
5.863 0.000
0.000 0.000
1.028 Semi-skilled labor
0.198 7.761
1.007 0.000
1.203 Unskilled labor
0.036 2.350
2.105 4.607
2.765 Informal capital
0.000 0.143
0.279 0.069
0.132 Largeholder land
0.000 0.000
1.809 0.000
0.574 Smallholder land
0.000 0.000
0.000 0.796
0.317 Dividends
6.040 0.000
0.000 0.000
1.059 Rents
235.000 0.000
0.000 0.000
6.253 Subtotal
223.536 10.254
5.200 5.472
0.824 Consumer price effect
4.156 1.176
20.926 20.895
0.171 Total
220.358 11.550
4.226 4.528
0.838 Niger
Skilled labor 3.380
0.000 0.000
0.000 0.678
Unskilled labor 0.138
1.731 1.592
2.658 1.658
Informal capital 0.212
0.610 0.494
0.070 0.317
Large holder land 0.000
0.000 0.584
0.000 0.207
Small holder land 0.000
0.085 0.000
0.159 0.061
Rents 223.534
0.000 0.000
0.000 24.722
Subtotal 219.803
2.426 2.670
2.887 21.800
Consumer price effect 1.102
0.496 20.529
20.194 20.015
Total 218.919
2.934 2.127
2.687 21.815
Source: Model simulations.
766 P. A. Dorosh and D. E. Sahn
nonpoor, who have relatively high marginal propensities to save, help offset the gain in savings of other households so that total
savings and total investment rise relatively little and actually falls slightly in Cameroon.
Most important, the average real incomes of the poor, including the rural poor who have lowest per capita incomes, rise with
real exchange rate depreciation. This increase results because the removal of distortions in the prices of importables leads to a
more efficient allocation of resources: demand for unskilled labor increases, as do returns to informal sector capital, benefitting poor
households in both urban and rural areas. Urban poor households also benefit from lower prices of importable goods they consume.
For example, the reductions in the household consumer price indices for urban poor households in Madagascar and Niger raise
their real incomes by 4.16 and 1.10 percent, respectively Table 4. A major factor contributing to increased real wage payments to
unskilled labor for rural households is increased profitability of agricultural traded goods, due to the depreciation of the real
exchange rate. Real incomes of small farmers who cultivate export crops in Madagascar increase by 5.0 percent compared to the
average country-wide increase of only 0.84 percent.
14,15
Simulation III: Reductions in government spending: In Simula-
tion III, real government expenditures are cut by 10 percent to increase government savings reduce the government deficit and
14
Our modeling assumptions regarding household transfers have little impact on these results. Not explicitly incorporating international transfers to households in the Cameroon,
Madagascar, and Niger models is equivalent to assuming that all international transfers accrue to the urban nonpoor, and that these transfers are fixed in dollar terms. National
household survey data from Madagascar Government of Madagascar, 1993, in fact, show that reported international transfers are both small and concentrated among the urban
nonpoor, with per capita transfers equal to FMG 54,522 1.1 of expenditures for the richest 5 percent of households and only FMG 1,747 0.2 of expenditures for the poorest
40 percent. Data in Ghana show a similar pattern. Note that these national household surveys each captured about one-quarter of private household transfers shown in the
balance of payments.
15
The result that real exchange rate depreciation tends to benefit the poor is consistent with findings by Schneider et al. 1992 in a study using a CGE model for Coˆte d’Ivoire
with both real and financial variables. The equations of the Coˆte d’Ivoire model used derive from Bourguignon, Branson, and de Melo 1989a, 1989b. Model simulations show
that a 22 percent real devaluation of the CFA franc in 1981 spurs exports, increases employment, and reduces poverty in both urban and rural areas.
MACROECONOMIC ADJUSTMENT AND POVERTY 767
permit an increase in private investment Table 5.
16
Because, in this, and the two following simulations, the real exchange rate is
allowed to adjust without an imposition of quotas, results of these runs are thus compared with the results of Simulation II. The
biggest effect of reducing the size of government is that it allows investment to increase by 4.5 percent Cameroon to 20.3 percent
Niger. Government recurrent expenditures are very large rela- tives to private investment in Madagascar and Niger, so the change
in investment is greater in these two countries. Real GDP falls slightly in The Gambia, Madagascar, and Niger, and the real ex-
change rate depreciates slightly in all countries 0.3 to 0.8. Gov- ernment revenues fall in Niger as income taxes on wages of skilled
government workers an important source of revenues decline.
In general, urban households are hurt more by the decline in government expenditures because government employment is
concentrated in urban areas. The increase in investment spending tends to help offset this decline, however. The effect on rural
households varies across countries: rural households enjoy slight increases in real incomes in The Gambia and Madagascar, mainly
due to effects of the small depreciation of the real exchange rate in boosting incomes for producers of tradable commodities.
Simulation IV: Maintaining government revenues through in- creased trade taxes:
in Simulation IV, in addition to allowing the real exchange rate to adjust, taxes on foreign trade are increased
uniformly by 10 percent in an attempt to maintain government revenues in spite of the shock of lower world prices for exports
and reduced foreign capital inflows.
17
Greater trade taxes in this simulation raise real tax revenues by 8.4 to 32.5 percent, thus increasing the pool of total savings in
the economy Table 6. Real investment increases sharply in all four economies. Taxing trade, however, introduces distortions in
the economy by reducing incentives for both exports and imports and leading to shifts in resources away from production of ex-
portables and towards importables and, to a lesser extent, non- traded goods. Real GDP thus falls by 0.1 to 2.5 percent in this
16
Note that in the models, total investment is determined simply by the availability of total savings; thus, investment increases automatically with a cut in government expendi-
ture, which increases government and total savings in the economy.
17
Export taxes are imposed on the export sectors listed in footnote 4 except for The Gambia, where only groundnut products are taxed and Niger where cowpeas and livestock
exports are taxed.
768
P. A.
Dorosh
and D.
E. Sahn
Table 5: Simulation III: Real Devaluation with Reduction in Government Spending
Percentage change
a
Cameroon The Gambia
Madagascar Niger
Real GDP 0.03
20.38 20.20
20.18 ConsumptionGDP
20.09 20.32
0.00 21.13
Total investmentGDP 0.85
1.26 0.71
2.23 Government recurrent expendituresGDP
20.65 21.32
20.92 21.33
Government revenueGDP 0.05
0.03 0.32
20.01 ExportsGDP
b
0.07 0.16
0.10 0.12
ImportsGDP
b
0.07 0.16
0.10 0.12
Change in foreign savingsbase year exports 0.00
0.00 0.00
0.00 Real exchange rate
0.41 0.29
0.58 0.84
Real wage rates Skilled labor
21.97 20.36
28.32 211.40
Semiskilled labor 20.52
0.48 23.83
— Unskilled labor
0.16 20.02
0.64 0.31
Real incomes Urban nonpoor
0.11 20.76
0.93 27.66
Urban poor 20.78
20.97 23.12
20.96 Rural nonpoor
20.28 0.14
0.04 20.66
Rural poor 20.11
0.05 0.56
20.44 Small farm—export-oriented
0.67 20.49
Total 20.16
20.42 0.00
21.75 Source:
Model simulations.
a
Percentage change relative to Simulation II.
b
Exports and imports valued at Simulation II real exchange rate.
MACROECONOMIC
ADJUSTMENT
AND POVERTY
769
Table 6: Simulation IV: Real Devaluation with Increased Taxes on Foreign Trade
Percentage change
a
Cameroon The Gambia
Madagascar Niger
Real GDP 20.66
22.47 21.12
20.09 ConsumptionGDP
21.72 25.74
22.18 22.19
Total investmentGDP 1.05
3.27 1.06
2.10 Government recurrent expendituresGDP
0.00 0.00
0.00 0.00
Government revenueGDP 1.33
5.18 3.16
3.24 ExportsGDP
b
21.12 23.23
21.00 20.80
ImportsGDP
b
21.12 23.23
21.00 20.80
Change in foreign savingsbase year exports 0.00
0.00 0.00
0.00 Real exchange rate
1.31 1.14
7.76 23.81
Real wage rates Skilled labor
21.96 212.97
28.01 23.00
Semiskilled labor 21.23
213.02 28.89
— Unskilled labor
27.65 24.08
24.99 22.86
Real incomes Urban nonpoor
0.49 212.12
21.93 24.12
Urban poor 20.50
211.73 26.99
23.11 Rural nonpoor
23.76 24.02
22.14 22.35
Rural poor 24.54
23.34 22.98
22.77 Small farm—export-oriented
23.34 22.70
Total 22.92
28.28 23.05
22.87 Source:
Model simulations.
a
Percentage change relative to Simulation II.
b
Exports and imports valued at Simulation II real exchange rate.
770 P. A. Dorosh and D. E. Sahn
simulation. In Cameroon, The Gambia, and Madagascar the real exchange rate depreciates because the negative effect of raising
taxes on agricultural exports in reducing supply of foreign ex- change is relatively more important than the effect of the increased
import tariffs on reducing demand for foreign exchange.
Real incomes of all household groups except the urban nonpoor in Cameroon fall, despite the increase in investment spending. De-
clines in urban incomes are generally larger than declines in rural incomes, as reduced economic current domestic production leads
to declines in returns to informal and formal sector capital. Farmers producing export crops tend to suffer larger declines in real incomes
than other small farmers, because of the decline in the real domestic price of export crops due to the increased export taxes.
5. CONCLUSIONS