Post on 11-May-2015
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TO SUBSIDISE OR TO TRANSFER?
A CGE ANALYSIS OF ALTERNATIVE POLICIES TO TACKLE CHRONIC FOOD INSECURITY IN ETHIOPIA
Seneshaw Tamru, Gerawork Bizuneh,
A. Stefano Caria
Ethiopia is Chronically Food Insecure
Persistent availability problem 1960-2001: per capita food availability always
significantly below per capita requirement (Demeke et al, 2004)
Increasing number of people with insecure access Number of estimated food transfer beneficiaries
trending upwards (Demeke et al, 2004)
Numerous utilization issues Acute watery diarrhoea (AWD), malnutrition, child
wasting and stunting prevalent
Tackling Access and Availability: To Subsidise or to Transfer?
Increase ag productivity through input (Fertilizer) subsidy Lower cost of inputs benefits farmers Higher production: availability Lower prices for consumers: access
Food transfers based on local procurement Higher prices benefit farmers Stimulate more production: availability Transfers used to address access
3 Caveats
Is fertilizer subsidy the most efficient policy to boost ag productivity? Optimal use, complementary policies, environmental
concerns If better ag policies exist, then our results are a low-
bound estimate of the effects of ag productivity growth
Focus on chronic food insecurity Fert subsidy not adequate to respond to fast-onset
disasters
Focus on access and availability, not utilization
Why Interest in Transfers, Local Procurement and Subsidies?
Transfers effective in raising food consumption, but incomplete “additionality” (Dorosh & Del Ninno, 2002)
Local procurement is solution to price disincentive effects of food aid imports (Barrett C. B., 2006)
Fertilizer subsidies have proved effective in the past: Malawi experience: higher application rates and yields
(Gilbert et al, 2009) Role in Green Revolution in Asia (Demeke, 2004)
In Ethiopia, given declining soil fertility and land availability constraints, food production growth has to happen at the intensive margin (increasing land productivity) But high cost of inputs
The Ethiopian Fertilizer Market Before 1993: Govt Monopoly, 15% subsidy in
93 93-00: significant private sector participation
1995: 30% subsidy 1996: 20% subsidy
February 1997: Subsidy Removed Marked fall in fertilizer application rates
2000-present Regional Holdings first and later Cooperative Unions dominate the market
Structure of the presentation Description of Simulations Results & Sensitivity Analysis Conclusions
The Simulations
Fertilizer Subsidy, Transfers from Local Procurement… and both
FERT: 50% decrease in fertilizer price through a subsidy on imported
fertilizer No change in food aid wheat imports
FERTL: 50% decrease in fertilizer price as in FERT Some food aid wheat imports replaced by local procurement
LOCAL: No subsidy on fertilizer No change in food aid wheat imports Increase in wheat transfers to rural poor through local
procurement same level of local procurement as in FERTL
Simulating a fertilizer subsidy
Introduce a negative tariff to reduce fertilizer price𝑃𝑀𝑓𝑒𝑟𝑡 = 𝑝𝑤𝑚𝑓𝑒𝑟𝑡 ∗൫1+ 𝑡𝑚𝑓𝑒𝑟𝑡൯∗𝐸𝑋𝑅+ 𝑇𝑟 𝐶𝑜𝑠𝑡𝑠
Subsidy on fertilizer calibrated so as to get a 50% reduction in price
…and the right demand and productivity response
Comparing 5 years averages before and after the 97 subsidy removal, we .. Adjust input output coefficient to obtain a
realistic demand response:𝑄𝐼𝑁𝑇𝑐,𝑎 = 𝑖𝑐𝑎𝑐,𝑎 ∗𝑄𝐼𝑁𝑇𝐴𝑎 Adjust productivity parameter to obtain a
realistic productivity response Assume ½ of difference in yield due to
fertilizer & no productivity change for non-traded agriculture𝑄𝑉𝐴𝑎 = 𝛼𝑎𝑣𝑎 ∗ቌ 𝛿𝑓,𝑎𝑣𝑎 ∗𝑄𝐹𝑓,𝑎−𝜌𝑎𝑣𝑎
𝑓𝜖𝐹 ቍ
1 𝜌𝑎𝑣𝑎ൗ�
Simulating a Wheat Transfer
Transfer money from government to households
𝑌𝐼𝑖 = 𝑌𝐼𝐹𝑖,𝑓𝑓𝜖𝐹 + 𝑇𝑅𝐼𝐼𝑖𝑖′𝑖′𝜖𝐼𝑁𝑆𝐷𝑁𝐺′ + 𝑡𝑟𝑛𝑠𝑓𝑟𝑖𝑔𝑜𝑣 ∗𝐶𝑃𝐼തതതതത+ 𝑡𝑟𝑛𝑠𝑓𝑟𝑖𝑟𝑜𝑤 ∗𝐸𝑋𝑅
Force households to consume out of cash transfer as if they had received wheat
Calibrate gamma in order to achieve a 0.25 MPC for an in-kind wheat transfer𝑃𝑄𝑐 ∗𝑄𝐻𝑐,ℎ = 𝑃𝑄𝑐 ∗𝛾𝑐,ℎ𝑚 + 𝛽𝑐,ℎ𝑚 ∗ሺ𝐸𝐻ℎ − 𝑠𝑢𝑏𝑠𝑖𝑠𝑡𝑒𝑛𝑐𝑒 𝑒𝑥𝑝𝑒𝑛𝑑𝑖𝑡𝑢𝑟𝑒ሻ
Simulating Local Procurement We fix wheat imports (mainly food aid and price
inelastic high quality wheat) & hence change model: Add one exogenous variable Make QMwheat and QDwheat highly substituable (sigma
8) Add one endogenous variable: Implicit Tariff
Imports of wheat in 2005 were 1.638 For LOCAL, imports at 1.638: all additional wheat
purchases from local markets For FERTL, imports go down: 1.061 of food aid
previously imported is now sourced locally
The implicit Tariff
𝐼𝑚𝑝𝑙𝑖𝑐𝑖𝑡 𝑇𝑎𝑟𝑖𝑓𝑓= ሺ𝐼𝑃𝑃′ − 𝐼𝑃𝑃ሻ∗𝑄𝑀′
Partial Eq Cost of the subsidy and a transfer of the same cost
pwm - World price 0.729tm- Subsidy 0.707EXR1- Exchange rate post-subsidy 1.019QM1- Fertilizer demand post-subsidy 2.230Total cost of subsidy 1.171
𝑝𝑤𝑚𝑓𝑒𝑟𝑡 ∗𝑡𝑚𝑓𝑒𝑟𝑡 ∗𝐸𝑋𝑅∗𝑄𝑀𝑓𝑒𝑟𝑡
The Partial Eq cost of the subsidy to the government is:
The subsidy will cost 1.171 billion birr. 1.061 billion birr of wheat can be transferred for the same cost:Total cost of wheat transfer 1.171
Total logistic costs 0.110Total amount transferred (value) 1.061
Closure
Factors closures… Labour is not fully employed and is mobile across
sectors Land is fixed and mobile Capital is fixed and activity specific
Marginal propensity to save is fixed; investment adjusts
Tax rate fixed, government savings adjusts Foreign savings fixed, exchange rate is flexible
DPI is numeraire (CPI flexible)
Results and Sensitivity Analysis
FERT: fert sub, no change in food aid imports
Productivity shock, lower cost of fert and higher application Higher domestic production and lower prices for 3 cereals Higher HHs consumption, also for rural poor FERT increases overall import demand: ex rate depreciates,
exports increase
Teff Wheat Maize Ntraded ExportProductivity shock 2.4 2.8 4.3 0.0 1.3Composite price -5.26 -5.73 -6.38 -0.41 -1.17Domestic Production 6.95 10.59 7.40 2.38 2.98HH consumption 8.25 9.37 8.17 2.97 3.72Rural poor consumption 8.33 9.25 8.02 2.83 3.62
Absorption 1.6 3.1HH consumption all goods 2.8 1.1Investment -2.4 0.8Real exchange rate
% Change from base- Ag commodities
% Change from base- Macro variablesExportsImports
FERTL: fert sub, some aid imports replaced by local procurement
Similar to FERT: production, price and consumption effects Local procurement induces larger domestic production
response for wheat and lower price reduction HH consumption on all goods rises compared to FERT Total import demand slightly reduced: small appreciation of
real ex rate
Teff Wheat Maize Ntraded ExportProductivity shock 2.4 2.8 4.3 0.0 1.3Composite price -5.12 -2.78 -6.23 -0.18 -0.39Domestic Production 7.38 36.33 7.90 2.71 2.52HH consumption 9.70 7.31 9.16 3.98 4.23Rural poor consumption 8.72 6.62 8.66 3.38 3.57
Absorption 2 -0.1HH consumption all goods 3.3 -0.2Investment -2 -0.2Real exchange rate
% Change from base- Ag commodities
% Change from base- Macro variablesExportsImports
LOCAL: additional wheat transfers from local procurement
Minor increase in prices of all cereals, due to income and consumption effects of transfer
Increase in domestic production of wheat, large increase in rural poor consumption of wheat due to transfer
Small macro effects on real exchange rate
Teff Wheat Maize Ntraded ExportProductivity shock 0 0 0 0 0Composite price 0.19 0.42 0.19 0.22 0.56Domestic Production 0.82 6.67 1.03 0.69 0.40HH consumption 0.88 5.16 1.05 0.89 0.62Rural poor consumption 4.16 20.67 3.45 3.92 3.6
Absorption 0.2 -0.7HH consumption all goods 1 -0.2Investment -2.8 -0.1Real exchange rate
% Change from base- Ag commodities
% Change from base- Macro variablesExportsImports
Availability of Food: Cereal Production & Supply
Subsidies (FERT + FERTL) cause production and supply gains for all cereals Local procurement
(FERTL) increases domestic production of wheat further
… but slightly lowers overall supply given cap on imports
Food transfers (LOCAL) affect production and supply of wheat only
Teff Wheat Maize0
10
20
30
40
% Change in Domestic Production
FERT FERTL LOCAL
Purchasing Power: Income Effects
Fertilizer subsidy (FERT) raises income of all HHs Local procurement
(FERTL) increases income gains of the rural poor, through higher returns to land and labor
Wheat transfer (LOCAL) delivers highest income gains for rural poor Small-no gains for
other HH
Rural Poor Urban Poor0.001.002.003.004.005.006.00
HH Income: % Change From Baseline
FERT FERTL LOCAL
Access to Food: Cereal Consumption of the Rural Poor
Fert subsidies (FERT and FERTL) increase consumption of all cereals Price and income effects
contribute to access Food transfers (LOCAL)
increase wheat consumption only Transfers and small
income effect increase access
Higher cereal prices tend to lower access
Teff Wheat Maize0
5
10
15
20
25
% Change in Rural Poor Consumption
FERT FERTL LOCAL
Cereal Consumption of the Rural Poor is sensitive to changes in assumptions
Change in aggregate food consumption depends on: Productivity gains from
fertilizer use MPC out of in-kind transfer
Under conservative assumptions, LOCAL achieves a higher aggregate consumption than FERTL
Realistic estimates are 2/3p & 0.25<MPC<0.5 No clear ranking
0.0%6.0%
12.0%18.0%
6.2% 7.1%
15.6%
6.6% 9.0%
% Change in Rural Poor Consumption of 3 Cereals
+ ntag
Effects of wheat transfer on non-recipient HHs
Wheat consumption of all other household groups decreases with additional food transfers (LOCAL) Effect of higher prices dominates income effects
Mis-targeted rural poor will not receive the transfer but pay higher cereal prices Effects are negligible
teff 0.15%wheat -0.01%maize 0.11%
Mis-targeted Rural Poor Wheat Cons Change
General Equilibrium Effects
Same partial eq cost for all simulations, but in general eq revenue and expenditure (ie govt net revenue) change
Fertilizer subsidy (FERT + FERTL) income effect has positive effect on govt tax revenue, hence PE Costs > D.net revenue
In LOCAL PE Costs < D.net revenue, WHY? reduction in investment resulting from reduction in net revenue
Subsidy with local procurement most cost-effective at delivering GDP growth
Govt Savings D.net revenue PE Costs % GDP Change D.GDP/ GE CostBASE 5.37FERT 4.35 -1.02 -1.171 2.02 2.4FERTL 4.29 -1.07 -1.171 2.58 2.9LOCAL 4.13 -1.24 -1.171 0.31 0.3
Costs Benefits
Conclusions
Subsidy with Local Procurement has a strong Food Security Response
Fertilizer subsidy with local procurement (FERTL) delivers: The best domestic production and supply (availability)
response for all cereals Large household consumption (access) response for all
cereals Smaller loss in government net revenue
Locally procured transfers (LOCAL)… Generate little general supply response compared to fertilizer
subsidy Large consumption response (access), especially wheat Harm food consumption of other groups; mis-targeted food
consumption is unaffected
Agricultural Productivity effective in tackling Chronic Food Insecurity
Fertilizer subsidy works through agricultural productivity reponse
Virtuous cycle of increased production, increased incomes, lower prices, higher food consumption
Best when coupled with local procurement
Calibration: what are actual productivity gains from additional fertilizer use? What is a realistic MPC for in-kind transfers? If low productivity & high MPC transfers to be
preferred for improving access of rural poor