Major tea exporters consider a new cartel

This is potentially an important development in a key consumer industry - can major tea exporters successfully manage the world price of tea in the form of an international cartel? What are the conditions required for cartels to be successful? When do international price agreements break down? Can you think of some of the benefits and costs of such a scheme from the point of view of different stakeholders?Links to follow:Tea cartel formed by leading producer nations (BBC news)World tea producers may brew up higher tea prices (Telegraph Australia)