Controlling for Endogeneity of Strike Variables in the Estimation of Wage Settlement Equations
利用西班牙大型企业集体谈判的不平衡面板数据，分析罢工与工资的联合决定，通过工具变量控制罢工变量的内生性，发现罢工持续时间与工资变化呈负相关，但短期罢工仍带来更高工资涨幅。
This article analyzes wage changes with an unbalanced panel from the Spanish Collective Bargaining in Large Firms survey. Central to the analysis are the joint determination of strike and wage outcomes and, in particular, the estimation of the slope of the wage concession curve. The author controls for the possible endogeneity of strike variables in the wage equation and suggests two sets of instruments: lagged strike outcomes or reduced-form predictions of the strike variables. When controlling for endogeneity, a negative relationship between strike duration and the size of the wage change arises. However, short strikes still produce higher wage changes. Copyright 1999 by University of Chicago Press.