Jonas Kolsrud

Welcome to my webpage, I'm a senior lecturer at the Department of Economics, Linnaeus University and affiliated researcher at the National Institute of Economic Research, Stockholm, and the Swedish Institute of Social Research (SOFI), Stockholm University.

Email: jonas.kolsrud[at]lnu.se

I do research on consumption and saving, public social insurance programs and wage formation.


Click here for my CV

Work in progress

Labor shortages, rent sharing and employment dynamics

I combine linked employer-employee data with data from a firm tendency survey in Sweden to gauge the effects of firms' reports of labor shortages on wage formation and employment dynamics. Firms that report labor shortage raise incumbent workers' wages 0.3 to 0.9 percent faster. The effects are concentrated among highly educated workers earning above median wages: Workers in the top wage quartile get up to 2 percent higher wage raises compared the national average. Also, incumbent workers in firms with labor shortage climb quicker up the job ladder. The employment dynamics can be understood as firms with labor shortage being more prone to hire workers from non-employment who take jobs further down the job ladder while incumbent workers move up the rungs. However, moves up the job ladder cannot fully explain why labor shortages lead to higher wage growth. This points to a hold-up problem at the firm where workers are able to raise their wages more than the competitive wage when the employer is short of staff.

See the NIER's Wage formation report (2022) for a shorter version in Swedish.


Labor market effects of high minimum wages: Evidence from Sweden 

I study the effect of collective agreed minimum wages on employment and wage formation in the retail and hospitality sectors in Sweden. In the sectors, which traditionally employ many workers with a lower degree of labor market attachment, the minimum wage bite rose from 60% in year 2000 to 70% in 2010. This makes it an interesting case study to see how high minimum wages can become before they start having adverse effects on employment. I find that higher minimum wages increase the likelihood of non-employment among incumbent workers; minimum wages raise total wages but that the relationship is inelastic suggesting that workers earning more than the minimum wage are compensated for the minimum wage increments; labor earnings drop since higher wages cannot compensate for reduced employment on both the intensive and extensive margins. I also find that minimum wages affect employment negatively when the minimum wage bite rise but not when it is kept constant, albeit at a relatively high level.

See the NIER's Wage formation report (2021) for a shorter version in Swedish.

 

Working papers

Taxing top wealth: Migration responses and their aggregate economic implications (with Katrine Jakobsen, Henrik Kleven, Camille Landais and Mathilde Muñoz)

Using administrative data on wealth, firm ownership structure, and migration in Sweden and Denmark, we document international migration patterns among the very wealthy, their impact on the economy, and how they respond to wealth taxation. We show that more than 20% of taxpayers liable to pay wealth tax are business-owners, and that the employment, investments, and value-added of these businesses are negatively affected when their owner migrates out of the country. Exploiting three large reforms, we then isolate the causal effect of wealth taxation on the international location choices of the wealthy. We find significant effects on out-migration flows from increases in the effective wealth tax. But, we also document that the overall level of these migration flows is remarkably small, with annual net-migration rates below .01%. As a result, we find that the aggregate economic effects of tax-induced migration are modest in Scandinavia: a one percentage point increase in the average wealth tax rate on the top 2% decreases the stock of wealthy taxpayers by at most 2% in the long run, and lead to a reduction of at most .03% in aggregate employment and at most .1% in aggregate value- added. Hence, our results suggest that trickle-down effects of tax-induced migration by the wealthy do exist, but that they are quantitatively small. 


Link to NBER WP


The capital advantage: Comparing returns to ability in the labor and capital markets (with Spencer Bastani, Kristina Karlsson and Daniel Waldenström)

Using administrative tax and military records, we show that cognitive ability is more strongly associated with capital income than with labor income. This result holds across intensive and extensive margins, across different income types, and after controlling for education, occupation, inheritance, and parental background. Higher ability individuals save more, are better at selecting high-return stocks, hold more risky assets, and are less likely to live hand-to-mouth. Capital market returns are higher for cognitive ability than for non-cognitive skills, and the difference is stable over time. Rising capital shares, fueled by technological progress, could therefore exacerbate cognitive ability-based economic inequality.

Link to paper


Business-cycle effects on precautionary saving estimates: Evidence from Swedish administrative data (2019)

Precautionary saving behavior is a cornerstone of many structural models, yet empirical evidence is inconclusive. Estimates of the size of precautionary wealth range between 0-50% of total wealth while Euler equation regressions have estimated relative risk aversion below conventionally assumed levels. The paper shows theoretically and empirically that (i) saving is non-linear function of income or consumption growth variance, and (ii) that the relationship between saving and income or consumption variance is highly dependent on the business cycle. Accounting for non-linearities and removing business cycle effects show that linear models underestimates precautionary wealth with at least 30% and that the coefficient of relative risk aversion is estimated to 1. The paper uses Swedish registry data on income and wealth and a residual measure of consumption to estimate Euler equations. The results are robust to asset risk, habit persistence and credit constraints. A heterogeneity analysis shows that increased income risk leads to a rebalancing to less risky assets, and that groups who face higher income variance change their net worth less when income risk rises.

Link to paper


Publications

The value and limits of unemployment insurance

(with Johannes Spinnewijn)

Forthcoming, LSE Public Policy Review

Link to paper (WP version)


Retirement consumption and pension design 

(with Camille Landais, Daniel Reck and Johannes Spinnewijn)

American Economic Review, 114(1), 89-133. 

Link to paper

Link to Vox column


The Value of Registry Data for Consumption Analysis: An Application to Health Shocks (2020)

(with Camille Landais and Johannes Spinnewijn)

Journal of Public Economics, 189

Link to paper

Link to Vox column


The Optimal Timing of Unemployment Benefits: Theory and Evidence from Sweden (2018)

American Economic Review, 108(4-5), 985-1033.

(with Camille Landais, Peter Nilsson and Johannes Spinnewijn)

Link to paper


Voluntary unemployment insurance as an option for non-standard work: The case of Sweden (2018)

OECD (2018) (ed.), The Future of Social Protection: What works for non-standard workers?, OECD publishing, Paris.

Link to paper


Yrkesintroduktionsanställningar – Slutrapport om effekter på sysselsättning och lönebildning (2016) 

Konjunkturinstitutet, Specialstudie 49.

Link to paper