Raju, Dhushyanth

Social Protection and Jobs Global Practice, World Bank
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Education, Health, Nutrition, Labor, Poverty, Risk
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Social Protection and Jobs Global Practice, World Bank
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Last updated September 15, 2023
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    Sectoral Productivity Shock, Regional Differences in Intersectoral Linkages, and Structural Transformation in Ghana
    (World Bank, Washington, DC, 2023-05-17) Paul, Sumik ; Raju, Dhushyanth
    This paper studies the effect of a local sectoral productivity shock on subnational structural transformation. The analysis is based on regional input-output tables constructed for 2004 and 2013 and available censuses of firms in 2003 and 2013 for Ghana. Based on the data, the analysis confirms the occurrence of a mining productivity shock. Between 2004 and 2013, mining grew dramatically as a share of gross domestic product. The mining shock occurred primarily in the south of Ghana with much larger increases in mining’s share in regional output, the number of mining firms, and mining employment than in the north of the country. The findings show that the mining productivity shock led to growing regional (north-south) differences in intersectoral linkages, with greater intermediate use of mining output and a larger sectoral total factor productivity ratio between mining and manufacturing in the south than in the north. Informed by international evidence of strong intersectoral linkages between mining and heavy manufacturing industries, the paper examines the performance of heavy manufacturing in response to the mining productivity shock. The elasticity of heavy manufacturing to mining employment growth is 50 percent larger in the south than in the north, generated by an increase in both average firm employment and the entry of new firms. These north-south differences are interpreted as possibly due to weak interregional production linkages.