Income and Effort: An Instrumental Variables Approach
Does income affect how much people value effort? If income has a negative causal effect on how much effort is valued, an increase in income will adversely affect the cultivation of a growth mindset. Achievement will then be affected because intelligence, abilities, skills, and intrinsic motivation are affected. By utilizing data from the 2010 Chinese General Social Survey, this paper shows that doubling income reduces the probability of an individual valuing effort by two to three percentage points. This study is the first to examine the effect of income on how much effort is valued. It addresses the endogeneity of income by using the regional unemployment rate, regional Consumer Price Index, and regional retail growth rate as instruments. Placebo tests were performed to evaluate the validity of the instruments. The negative causal effect of income on how much effort is valued implies that creating an environment where intrinsic motivations can flourish is of greater importance among higher income workers. Promoting employees with higher income may have a negative effect on engagement through the cultivation of a growth mindset.
KeywordsIncome Effort Endogeneity Instruments Causal effect
Compliance with ethical standards
The Lewis University Institutional Review Board (IRB) approved this study.
- China Statistical Yearbook (2010). http://www.stats.gov.cn/tjsj/ndsj/2010/indexeh.htm. Accessed 4 Dec 2019.
- Chinese General Social Survey (2010). http://cnsda.ruc.edu.cn/index.php?r=projects/view&id=15553986. Accessed 4 Dec 2019.
- Duckworth, A. (2016). Grit: The power of passion and perseverance. New York: Scribner/Simon & Schuster.Google Scholar
- Dweck, C. S. (2008). Mindset: The new psychology of success. New York: Random House.Google Scholar
- Dweck, C. S. (2015). Carol Dweck revisits the “growth mindset.”. Education Week, 35(1), 20–24.Google Scholar
- Frijters, P., Johnston, D. W., Shah, M., & Shields, M. A. (2009). To work or not to work? Child development and maternal labor supply. American Economic Journal: Applied Economics, 1(3), 97–110.Google Scholar
- Gerhart, B., & Milkovich, G. T. (1992). Employee compensation: Research and practice. In D. M. Dunnette & L. M. Hough (Eds.), Handbook of Industrial & Organizational Psychology (pp. 481–569). Palo Alto: Consulting Psychologists Press.Google Scholar
- Sternberg, R. (2005). Intelligence, competence, and expertise. In A. Elliot & C. S. Dweck (Eds.), The handbook of competence and motivation (pp. 15–30). New York: Guilford Press.Google Scholar
- Wen, Y. (2018). Income and living standards across China. Federal Reserve Bank of St. Louis. https://www.stlouisfed.org/on-the-economy/2018/january/income-living-standards-china. Accessed 4 Dec 2019.