National champions are corporations which are technically private businesses but due to governmental policy are ceded a dominant position in a national economy. In this system, these large organizations are expected not only to seek profit but also to "advance the interests of the nation"; the government sets policies which favor these organizations. The policy is practiced by many governments, in some sectors more than others (such as defense), but by giving an unfair advantage against market competition, the policy promotes economic nationalism domestically and global pre-eminence abroad contrary to the free market. The policy also deters or prevents venture capitalism.
As the policy is the collective form of inequality of opportunity, it is irreconcilable with the paradigm of the neo-liberal (or “laissez faire”) economy. It was a major part of the dirigiste policy of 1945–1975 France.