ST. PETERSBURG, Russia [1] — In his first major economic speech since becoming president, Dmitri A. Medvedev [2] said Saturday that the world might be in the throes of the worst economic crisis since the Great Depression and that a newly revived Russia could offer solutions to a systemic crisis that has underscored America’s shortcomings.

Mr. Medvedev, who was inaugurated on May 7, spoke at the St. Petersburg International Economic Forum, an annual event since the 1990s that was thrust into the spotlight last year as Russia’s answer to rival forums held in Europe.

It was also a showcase for the former imperial capital of St. Petersburg, hometown of Prime Minister Vladimir V. Putin [3] and Mr. Medvedev. The forum opened ... >>>