ST. PETERSBURG, RUSSIA—For years, President Vladimir Putin used an annual economic conference here to champion Russia’s economic appeal to the world.
In 2010, then-French President Nicolas Sarkozy spoke alongside Dmitry Medvedev, Russia’s president at the time. Past attendees included Citigroup Inc.’s Vikram Pandit, JPMorgan Chase & Co.’s Jamie Dimon and Morgan Stanley’s John Mack.
