Multipliers show the effects on global farm incomes (capital and labour) in USD per USD of global value of given support measures, as calculated from these marginal policy simulations. A marginal increase in subsidies leads to lower agricultural prices compared to countries with lower fertiliser cost shares. As a consequence, competitiveness and market shares of Indian agriculture increase in domestic and foreign markets. In contrast, countries with lower fertiliser cost shares see agricultural incomes fall due to lower market shares and lower crop prices. Model results suggest that fertiliser output subsidies on the one hand, and fertiliser input subsidies on the other hand, have very similar relative effects on world market prices and the production of primary agricultural products, and hence on agricultural incomes. This effect is partly due to the fact that the farming sector is the only user of fertilisers, and by the assumption of perfect competition in agriculture (zero-profit condition for firms).