Pay Transparency and Inventor Productivity: Evidence From State‐Level Pay Secrecy Laws

Gao, H., Hsu, P.H., Zhang, J.

H Gao, PH Hsu, J Zhang - The RAND Journal of Economics, 2025 - Wiley Online Library

21 citations2025DOI: 10.1111/1756-2171.70005

Summary

The research paper "Pay Transparency and Inventor Productivity: Evidence From State‐Level Pay Secrecy Laws" by Gao, Hsu, and Zhang investigates the impact of pay transparency on the innovative output of firms. The authors examine the role of pay transparency by leveraging the staggered adoption of state-level pay secrecy laws across the United States. These laws are designed to enhance transparency regarding compensation in the workplace, thus providing a natural experiment to observe their effects on inventor behavior and productivity. The study focuses on the salaries of scientists and engineers, analyzing how changes in the legal environment surrounding pay secrecy influence their productivity, measured through various innovation metrics such as patent output and quality. The methodology employed in the study capitalizes on the variation created by the staggered implementation of state-level pay secrecy laws. By comparing firms located in states that adopted such laws to those in states that did not, the researchers can isolate the causal effect of increased pay transparency. The findings reveal a significant increase in inventor productivity for firms operating in states that passed these laws, relative to firms in other states. This positive correlation is found to be particularly strong in states where pre-existing levels of pay transparency were lower. The paper further delves into the mechanisms through which pay secrecy laws foster inventor productivity, identifying several key drivers: increased motivation among inventors, notably minority inventors, to exert more effort; an enhancement in the diversity of inventor teams; and an encouragement for all inventors to actively pursue promotions. These findings suggest that the transparency of compensation schemes plays a crucial role in corporate innovation, beyond just the structure of the compensation itself. The study implies that policymakers and firms should consider the benefits of greater pay transparency as a strategic tool to boost innovation and create a more equitable and productive environment for inventors.

Key Findings

  • * State-level pay secrecy laws, which increase pay transparency, lead to a significant rise in inventor productivity within affected firms. * The positive impact of pay transparency on inventor productivity is more pronounced in states that initially had lower levels of pay transparency. * Pay secrecy laws enhance inventor productivity by motivating inventors, especially minority inventors, to exert greater effort. * Increased pay transparency contributes to the enhancement of diversity within inventor teams. * Pay transparency encourages all inventors to pursue promotions, further contributing to overall productivity.