Until the 1980s most large corporate layoffs meant the temporary suspension of employment, rather than the more permanent downsizing which we know today. In new research which examines nearly 700 layoff announcements over 16 years, Jiwook Jung examines what led to this change in corporate policy. He finds that the decline of industrial unions led what were once temporary layoffs, which were often followed by recall in better economic times, to become permanent. Though labor unions resisted this shift, their decline meant that firm managers were able to gain an upper hand in making decisions about layoffs