On 20 January 1994, as Vladimir Rayfikesht resigned, on his recommendation, Boris Yeltsin appointed Korshunov as the new governor of Altai Krai.

But thanks to good relations with Prime Minister Viktor Chernomyrdin, Korshunov achieved the adoption of a government decree "On measures of state support in overcoming depressive phenomena in the economy of the Altai Krai."

The document instructed the Ministry of Finance "before the adoption of the federal law on state minimum social standards, to annually determine the amount of financial support for the Altai Krai from the federal budget, taking into account the specifics and features of the crisis state of its economy."

In 2001 he defended his thesis on the topic "Tax resources of the region in the transition to a market economy (the example of the Altai Krai)", received the degree of candidate of economic sciences.

In 2006, he prepared for defense his thesis "Sustainable and safe development of the regional economy in the context of spatial transformations (on the example of the Altai Krai)" for the degree of Doctor of Economics, in which, according to the investigation of the network expert community Dissernet, large-scale borrowings were discovered, but for unknown reasons protection did not take place.

[2] In March 2007, he nominated himself for the election of the rector of the Altai State Technical University, and on 7 August 2007, on the recommendation of the head of the Federal Education Agency G. A Balykhin, he was appointed acting vice-rector for capital construction at Altai State Technical University, in order to subsequently have the legal right to appoint him as acting rector.

On 18 September 2007, by order of the Federal Agency for Education, he was appointed Acting Rector of Altai State Technical University.