This conference report focuses on three major areas of interest: (1) land reform in Colombia, (2) social change in Popayan, and (3) implications for research in agrarian structure in Colombia. A case study dealing with Colombia's sequence of moves toward land reform over the last 40 years is reviewed. The impact of political factors and social change is discussed. The function and implications of an agrarian reform law of 1961 and a Colombian agency (INCORA) for agrarian reform are examined. The relationship between land reform and social change is found to be crucial. (RL)