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Working Paper

Market Integration and Poverty : Evidence from South Sudan

SUBSTITUTION WAREHOUSE PRICE LEVELS PRICE STABILIZATION AIRPORT STOCK INCOME INTEREST TRANSPORT INFRASTRUCTURE INTERNATIONAL AIRPORT VEHICLES TRANSPORTATION COSTS ROAD BUILDING AVERAGE PRICES INFORMATION FLOWS EXCHANGE LIQUIDITY TREND ELASTICITY GASOLINE EFFECT OF FUEL PRICES ROAD INFRASTRUCTURE PRICE ROUTES MARKET ACCESS REMOTE REGION TRANSPORTATION INFRASTRUCTURE DRIVERS PUBLIC POLICY PRICE STRUCTURE SAVINGS ROAD TOLLS COSTS PRODUCTION STRUCTURE ROAD NETWORK TRANSPORT LOW-INCOME COUNTRIES FOOD PRICE PRICE VOLATILITY FIXED COSTS SURPLUS PRODUCTS JOURNEYS SUPPLY SHOCKS MARKETS CONNECTIVITY DOMESTIC TRANSPORT TRUE PRICE SERIES PRICE POLICY ROAD IMPROVEMENT PRODUCT RURAL ROADS ROUTE GASOLINE PRICES FUELS FUEL COSTS ROAD QUALITY FOOD PRODUCTION INFRASTRUCTURE TAXES PRICE CHANGE EXPENDITURE PRICE OF DIESEL DATA AVAILABILITY MARKET SEGMENTATION TRAVEL TRANSPORTATION TRANSIT POLICIES INTERNATIONAL TRADE VOLATILITY BORDER CROSSING BARRIERS MARKET CONDITIONS FINANCIAL CRISIS AGRICULTURAL PRICE VALUE COMPETITIVENESS TRADE DEFICIT ACCESSIBILITY DEMAND CONSUMER PRICE COMMERCIAL VEHICLES PRICE CHANGES EXPENDITURES PRICE EFFECT FUEL PRICES PRICE ADJUSTMENT SIGNALS SALE AVERAGE PRICE MARKET FOREIGN EXCHANGE ENERGY PRICES PRICE INCREASE OUTPUT ROADS EXPOSURE CAR INFRASTRUCTURE INVESTMENTS LENGTH OF ROADS CROSSING ECONOMIC DEVELOPMENT REGIONAL INTEGRATION TRADE RAILROAD PRICE DIFFERENTIAL SECURITY ECONOMIES OF SCALE TRANSPORTATION COST INVESTMENT FUEL PRICE SHARE RAILROADS HIGH TRANSPORT SUPPLY FUEL PURCHASING INVESTMENTS MARKET INTEGRATION COMMODITIES PRICE VARIATIONS FOOD PRICES ARBITRAGE TRANSPORT COSTS MARKET CONDITION COMMODITY PRICES DIESEL COMMERCIAL FARMING TRAVEL TIME COMMODITY PRICES PRICE DIFFERENTIALS
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World Bank, Washington, DC
Africa | South Sudan
2016-03-09T18:32:35Z | 2016-03-09T18:32:35Z | 2016-02

This paper examines the effects of market integration on household consumption using data on seven food and two energy markets across South Sudan. The analysis reveals that markets in South Sudan are highly segmented. Price differences for narrowly defined products, across cities exceed in some cases 100 percent. In addition, price volatility increased substantially following the imposition of the trade restrictions with Sudan. This increase tends to hurt disproportionately the poor, who cannot smooth purchasing decisions over time because of liquidity constraints. Transportation costs explain almost half of the variation in food prices across space, and improving the quality of roads has a large potential to reduce prices in the most expensive towns. On the basis of this price effect, the simulations suggest that bringing all road quality across states to that of primary roads can yield a reduction in poverty from the rate of 51.7 percent in 2009 to between 42.8 and 46.9 percent. These estimates have to be interpreted as conservative, as they do not take into account the second-order effects of road construction from increased trade that will result from better road connectivity.

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