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α: calibrated so average coauthorship-adjusted count equals average raw count
This paper examines the implications of productivity improvements in agriculture, industry, and services for global poverty. We find that, in poor countries, increases in agricultural productivity generally have a larger poverty-reduction effect than increases in industry or services. This differential declines as average incomes rise, partly because agriculture becomes smaller as a share of the economy, and partly because agricultural productivity growth becomes less effective in reducing poverty. The source of the poverty-reduction benefits from agricultural productivity growth changes as innovations are more widely adopted—moving from increases in producer returns to reductions in consumer prices.