THE Dutch are generally a pretty content bunch. The Netherlands consistently ranks as one of the best places in the world to live. Dutch kids are among the happiest in the world, according to Unicef. Some attribute their high quality of life and general good nature to a rather laid-back approach to work: more than half of the Dutch working population works part time, a far greater share than in any other rich-world country. On average only a fifth of the working-age population in EU member states holds a part-time job (8.7% of men and 32.2% of women); in the Netherlands 26.8% of men and 76.6% of women work less than 36 hours a week (see chart). Why?