By Ludger Kasumuni The Citizen April 27, 2012 Dar es Salaam. Tanzania’s inability to improve coffee quality is denying it an opportunity to enjoy benefits from rising commodity prices in the world market. Kenya has been earning substantially especially from Arabica coffee exports since 2002, said researcher Donald Mmari when presenting his research findings at a Repoa annual workshop recently. Kenya earns more than $200 million a year from coffee exports twice as much as Tanzania’s. “Even after trade liberalisation, the quality of Tanzanian coffee has not increased to that of the level of Kenya’s. Economic liberalisation of the1980s and 1990s was carried out based on comparative advantage. It largely ignored the influence of evolving technology and market dynamics that alter production and cost structures, and structural and institutional constraints that prevented coffee producers from creating and sustaining a competitive advantage,” he said. According to hi...