An Empirical Model of Wage Indexation Provisions in Union Contracts

Working Paper: NBER ID: w1388

Authors: David Card

Abstract: Cost of living escalators are an important feature of North American labor contracts. This paper presents a measure of the response of index-linked wage increases to concurrent price increases for a sample of Canadian contracts, and then analyses this response in terms of a simple model of indexation to the aggregate price level. The model highlights the importance of aggregate price movements in conveying information about industry-specific prices. The empirical analysis confirms that industry-specific correlations between input and output prices and the Consumer Price Index are important determinants of the response of wage to prices across index contracts.

Keywords: wage indexation; labor contracts; consumer price index; inflation; union contracts

JEL Codes: J31; E31


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
higher prices (D49)higher indexed wage increases (J31)
industry-specific factors (L69)elasticity of wage responses (J31)
aggregate prices (P22)wage adjustments based on market-specific input and output prices (J31)
industry characteristics (L81)wage-price relationship (J31)

Back to index