A new administration led by Prime Minister Stephen Harper of the Conservative Party, which won the general election Jan. 23, has been inaugurated in Canada. The Conservatives have not held the reins of government since November 1993.

In Canada, where progressives had continued to rule through the Liberal Party, attention now is focused on what kind of conservative politics this 46-year-old prime minister will develop. During the election campaign Mr. Harper was criticized by his opponents as a neoconservative leaning toward Washington.

Political analysts attribute his victory partly to voters' weariness of the perceived "injustice" that had crept into the long-term administration of the Liberal Party, which had been promoting structural reforms. On any well-intended reform agenda, changes tend to bring not only gains but pain. As a result, reigning for a long period does not always work to the advantage of such a party come election time.