Using Danish high-frequency payroll data and tax reform variation, we detect year-end tax avoidance among top managers. Five to seven percent of top managers exploit year-end tax planning strategies to save taxes. Around 30 percent of the top managers engaging in year-end tax avoidance do so by retiming bonus payments while the rest shift regular wage income. However, bonus timing is most tax-sensitive. When considering all of the top managers receiving a December bonus, we find that more than one-quarter retime the bonus payment, whereas only 5 percent of those not receiving a bonus shift regular wage income.

We estimate the impact of youth minimum wages on youth employment by exploiting a large discontinuity in Danish minimum wage rules at age 18, using monthly payroll records for the Danish population. The hourly wage jumps by 40% at the discontinuity. Employment falls by 33%, and total input of hours decreases by 45%, leaving the aggregate wage payment almost unchanged. We show theoretically how the discontinuity may be exploited to evaluate policy changes. The relevant elasticity for evaluating the effect on youth employment of changes in their minimum wage is in the range 0.6 to 1.1.