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Table 7 Robustness test of measured items

From: Can the strategy of “mediate first” reduce collective labor disputes?—An empirical test based on province-level panel data from 1999 to 2011

Models (3) (4) (5) (6)
Dependent variables Average involved workers per collective dispute case accepted by arbitration institutions (Ln) The proportion of collective dispute cases accepted by arbitration institutions (Ln) Ratio of workers involved in collective labor disputes to urban labor (Ln) Ratio of collective labor disputes to urban labor (Ln)
Explanatory variables     
Extra-arbitral mediatory capacity of labor arbitration institutions −0.827* −0.033   
  (0.398) (0.439)   
Arbitral mediatory capacity of labor arbitration institutions −1.541* −0.277   
  (0.744) (0.726)   
Mediatory capacity of labor arbitration institutions    −1.089** −0.165
    (0.409) (0.440)
Constants 154.109 27.324 5.221 −104.318
  (153.751) (208.907) (208.262) (213.600)
Previous control variables Yes Yes Yes Yes
Province-fixed effects Yes Yes Yes Yes
Period-fixed effects Yes Yes Yes Yes
Province-specific time trend Yes Yes Yes Yes
R-squared 0.503 0.723 0.692 0.662
Observations 280 280 280 280
  1. Huber-White standard errors in parentheses
  2. *,**,***Denote significance at the 95, 99, and 99.9 % levels, respectively