74 Mesa-Lago calculates that by 1967 unpaid labor represented between 8 to 12% of the regular labor force. Recent immigrants talk about being required to volunteer a large number of hours of free labor to be eligible for raffles in which they have a chance to be chosen to purchase an appliance such as a refrigerator or sewing machine. Mesa-Lago (1972) concludes that although the use of unpaid labor may have educational and sociological benefits, it may also have a negative effect on production in several ways. Greatest of these is the fact that it reduces work incentive and increases production costs. Trends show an increase in the formal organization of unpaid labor, along the lines of military organization, to maximize the advantages of unpaid labor. Changes in Female Roles Prior to the Revolution, Cuban women were expected to exemplify the traditional Hispanic virtues of "chastity, subservience, and domesticity" (Black et al., 1976, p. 114). The new Cuban women are expected to be the opposite: "... active in the work force and in politics; expressive and open about their feelings, whether political or personal; and aggressive in their defense of the Revolution" (Black et al., 1976, p. 115). In addition to strong participation in the Committee for the Defense of the Revolution, they have formed a separate organization--the Federation of Cuban Womenthat has been very important in raising women's consciousness, integrating them into the work force and the political system, and achieving for them equal rights with men. This organization has also been important in civil