Econ Papers Daily / 期刊论文
连续寡头中的供给冲击缓冲：市场势力与福利含义
Buffering Supply Shocks in Successive Oligopoly: Market Power and Welfare Implications
摘要
We investigate the welfare consequences of supply shocks in concentrated agricultural supply chains using a successive oligopoly framework with upstream and downstream market power. While shocks reduce welfare for all participants, we prove the distribution is highly asymmetric. Specifically, market power in one stage mitigates welfare losses in the adjacent stage-a buffering effect. Furthermore, downstream market power magnifies upstream price increases following a shock. Our results demonstrate how strategic margin adjustments by firms with market power shape price transmission and redistribute economic surplus during supply disruptions.
中文摘要
我们采用具有上下游市场势力的连续寡头框架，研究集中型农产品供应链中供给冲击的福利后果。尽管冲击会降低所有参与者的福利，但我们证明其分配高度不对称。具体而言，某一环节的市场势力会缓解相邻环节的福利损失——一种缓冲效应。此外，下游市场势力会放大冲击后上游价格的上涨。我们的结果表明，具有市场势力的企业如何进行策略性边际调整，会塑造价格传导，并在供给中断期间重新分配经济剩余。