Some in the world¡¯s chocolate markets see the hefty premium charged by the largest cocoa producers as a blunt instrument wielded by the OPEC of confectionery ¡ª the tool of a faraway cartel that artificially inflates the price of a precious commodity.

But to the leaders of the Ivory Coast and Ghana, where most of the world¡¯s cocoa is actually produced, the argument is something else entirely: a lifeline for farmers who would otherwise be held hostage by raw-material giants.

Now those competing viewpoints ¡ª globalization as seen in a chocolate bar ¡ª have collided in spectacular fashion, thrusting the normally secretive machinations of some of the world¡¯s biggest chocolate companies, cocoa traders and processors into rare public view.