Randomly selected supervisors with rights to award financial spot bonuses receive a reminder. The reminder provides information that, historically, the majority of spot bonuses have been paid out at the end of the year. Moreover, it encourages the supervisors to award spot bonuses also during the year. The reminder will be sent out by the company. Note that the intervention is solely aimed at the timing of rewards. It does not mention the number of bonuses or the size of bonuses, and it will not affect the budgets for bonuses that the company has in place. With the exception of the reminder, we leave the company’s current system of financial rewards untouched.
We will measure the treatment effect by drawing on spot bonus payout data.