Wikipedia
Rent-seeking
In economics and in public-choice theory, rent-seeking involves seeking to increase one's share of existing wealth without creating new wealth. Rent-seeking results in reduced economic efficiency through poor allocation of resources, reduced actual wealth creation, lost government revenue, increased income inequality, and (potentially) national decline.
Attempts at capture of regulatory agencies to gain a coercive monopoly can result in advantages for the rent seeker in the market while imposing disadvantages on (incorrupt) competitors. The idea was originated by Gordon Tullock and the term was coined by Anne Krueger.