Under anarchy, uncoordinated competitive theft by ''roving bandits'' d
estroys the incentive to invest and produce, leaving little for either
the population or the bandits. Both can be better off if a bandit set
s himself up as a dictator-a ''stationary bandit'' who monopolizes and
rationalizes theft in the form of taxes. A secure autocrat has an enc
ompassing interest in his domain that leads him to provide a peaceful
order and other public goods that increase productivity. Whenever an a
utocrat expects a brief tenure, it pays him to confiscate those assets
whose tax yield over his tenure is less than their total value. This
incentive plus the inherent uncertainty of succession in dictatorships
imply that autocracies will rarely have good economic performance for
more than a generation. The conditions necessary for a lasting democr
acy are the same necessary for the security of property and contract r
ights that generates economic growth.