Karl Pauw

The economic costs of extreme weather events: a hydrometeorological CGE analysis for Malawi

Extreme weather events such as droughts and floods have potentially damaging implications for developing countries. Previous studies have estimated economic losses during hypothetical or single historical events, and have relied on historical production data rather than explicitly modeling climate. However, effective mitigation strategies require knowledge of the full distribution of weather events and their isolated effects on economic outcomes. We combine stochastic hydrometeorological crop-loss models with a regionalized computable general equilibrium model to estimate losses for the full distribution of possible weather events in Malawi. Results indicate that, based on repeated sampling from historical events, at least 1.7 per cent of Malawis gross domestic product (GDP) is lost each year due to the combined effects of droughts and floods. Smaller-scale farmers in the southern region of the country are worst affected. However, poverty among urban and nonfarm households also increases due to national food shortages and higher domestic prices.

The Economy-wide Impacts and Risks of Malawi's Farm Input Subsidy Program

We estimate the impact of Malawis Farm Input Subsidy Program using an economy-wide approach. This approach yields benefit-cost ratios about 60% higher than existing partial equilibrium studies, a result of our accounting for indirect benefits. Fertilizer response rates remain the determining parameter for benefit-cost ratio levels. Even with lower-end response rates, the program is pro-poor and generates double-dividends through higher and more drought-resilient yields. Overall, for macro-economically significant programs, our approach strongly complements survey-based evaluations. For Malawi, our results buttress arguments for a focus on program improvements.

The Impact of Food Price Shocks in Uganda: First-Order Versus Long-Run Effects

We look at the immediate effects of these shocks faced by households in Uganda on their poverty and well-being. In addition, we look at the economywide impact in the long run when all markets have settled at a new equilibrium. We find that in the short run, poverty has increased substantially. However, in the longer run, we find welfare levels of rural farm households in particular to rise sharply, primarily as a result of increased returns to farm labor and agricultural land coupled with improved market prices for output sold.

Exchange Rate Policy and Devaluation in Malawi

This study demonstrates why devaluation was ultimately necessary in Malawi and also what its eventual impact might be in terms of prices, income distribution, and domestic production. Our approach is to use a computable general equilibrium (CGE) model to evaluate the economywide impacts of foreign exchange shortages in Malawi under two alternative exchange rate regimes. The foreign exchange shortages are modeled by simulating the effect of actual shocks, including tobacco price declines and reductions in direct budgetary support or foreign direct investments. We then evaluate the economy’s response to these shocks under a fixed exchange rate regime and a flexible exchange rate regime.

Revisiting wage subsidies: How pro-poor is a South African wage subsidy likely to be?

Wage subsidies have been used in both developed and developing countries to raise employment. After a decade of deliberation, the South African Government recently announced the introduction of a wage subsidy scheme. Given the intrinsic link between unemployment and poverty in South Africa, the belief is that a wage subsidy programme sufficient in scope will also make inroads into poverty. However, the way in which jobs are distributed among poor and non-poor jobseekers is crucial. Our general equilibrium microsimulation model confirms the expectation that a higher wage elasticity of labour demand is associated with larger reductions in poverty. We also find that a greater proportion of new jobs accrue to poor jobseekers when the elasticity is high. While youth-targeting does not improve the poverty-reducing effect of the policy, sectors such as textiles, accommodation, and construction services with their pro-poor employment profiles are good candidates for targeting.

Achieving food security and industrial development in Malawi: Are export restrictions the solution?

Highlights • Evaluates the efficacy of export restrictions to promote food security and industrial growth in developing countries.• The use of an economywide framework is an advancement over traditional partial equilibrium approaches.• Highlights inconsistency between stated policy goals and outcomes due to behavioral responses, especially in the longer run.• Advocates for more liberal export policies to support private sector-led economic transformation in developing countries.

The effect of the National Food Reserve Agency on maize market prices in Tanzania

Tanzanias National Food Reserve Agency has a mandate to ensure food security through procuring, reserving and recycling grain (primarily maize) in a cost†effective manner. This mandate excludes a price stabilization role. Procurement prices, based on production costs, are often set above market prices to encourage production. Several disbursements channels exist: grain provided free or at a discount to targeted vulnerable households; subsidized sales to millers; and sales to prisons or nongovernmental aid programs, typically at market†related prices. Given the perception that these activities are distortive, we use time†series econometrics to model maize price dynamics in select wholesale markets to capture the Agencys market impact. We find that its pricing strategy had an insignificant impact on prices during 2010/11–2014/15 despite a fairly significant presence in at least some regional markets. We recommend that the Agency reconsiders offering a price premium on procured maize or selling maize at discount to millers, as limited market spill†over effects imply the benefits are captured by only a few, even though its practice of providing subsidized or free maize to vulnerable people is not in question. Furthermore, current storage capacity expansion plans are not required and inconsistent with its food security mandate.