A staunch Slavophile, Koshelev published numerous essays, mostly on economics.

In 1856 Koshelev started publishing the magazine Russkaya Beseda and two years later became its editor.

Later, he published the Moscow journals Beseda (1871–1872, edited by Sergey Yuriev) and (in 1880–1882) Zemstvo (edited by Vasily Skalon), both projecting the Slavophile views upon the agricultural issues and supporting the concept of obshchina as a true foundation for the Russian rural community.

[1] Koshelev worked for several governmental offices, in the Moscow and Ryazan Governorates, but also in Poland (then part of the Russian Empire), specializing in finances, bank systems and economics.

[3] Koshelev's memoirs came out posthumously in Berlin, his widow Olga Fyodorovna being wary of the possibility of the Russian censors mangling the text.