We estimate the effect of downsizing announcement on workplace performance using data from a German bakery chain of 193 shops. Faced with intensified competition, the firm decided to sell or close down 57 of its worst performing shops. We identify the effect of downsizing from a plausibly exogenous variation in the timing of the sale or closure announcement in the individual shops. We find that the announcements of the shop being sold to a new owner and being closed down reduce sales by six and 21 percent, respectively. The negative effect of downsizing increases with the share of workers with a permanent contract, even though permanent workers faced a much lower unemployment risk. We relate our findings to the literatures on downsizing and psychological contract.