Please answer the following question: Facts:   - profession: economist    - president: alvaro colom    - successor: harold caballeros    - predecessor: gert rosenthal    - office: minister of foreign affairs of guatemala      - term end: 14 january 2012    - term start: 14 january 2008    - birth date: 29 may 1946    - name: haroldo rodas    - nationality: guatemalan    - image: haroldo rodas.jpg    - birth place: guatemala city , guatemala    - alma mater: universidad de san carlos de guatemala   Based on these bullet points, write a short biography describing the life of haroldo rodas .
A:
roger haroldo rodas melgar -lrb- born 29 may 1946 -rrb- is a guatemalan economist , politician and diplomat .he served as foreign affairs minister in the cabinet of president alvaro colom , from 14 january , 2008 to 14 january 2012 .he was the only minister that served the four-year term .he previously served as vice-minister for foreign affairs from 1 january 1991 to 30 june 1992 .rodas studied economics at the universidad de san carlos de guatemala and a master 's in international economics at the graduate institute of international studies in geneva , switzerland .prior to being appointed foreign minister , he had been the secretary general of the secretariat for central american economic integration -lrb- sieca -rrb- since april 1995 .he has also held positions with the united nations development programme , the inter-american development bank , the union of banana exporting countries , the organization of american states , and the general agreement on tariffs and trade .