国际货币基金组织：供应链多样化和弹性（英文版）

This paper develops a new multi-country and multi-sector general equilibrium trade model to analyze extent to which the diversification of sources of imports mitigates the impact of adverse trade shocks. The model incorporates trade network rigidities arising from frictions in goods, labor, and local factor markets. Because countries cannot immediately reconfigure supply chains in response to shocks, supply chain diversification can potentially improve resilience, at the cost of efficiency. Q