This work includes such matters as: (1) analyzing and reporting on foreign markets (current and potential) for specific commodities produced and exported or imported by the United States; (2) conducting surveys in foreign areas of the actual and potential international supply and demand situation; (3) advising . producers, exporters and Government authorities on foreign market prospects and programs and on actions which may affect adjustment of U. S. agricultural production; (4) providing advisory services to foreign producers, importers, exporters, processors, and Government officials on . marketing and trade policies, practices and programs; (5) serving as.