that assist small-scale farm families. While there is some cample- mentarity among these activities, they compete for the limited resources available to agriculture. What Not to Expect from a Small Farm Program Two arguments that have been used to support a small farm research, extension and higher education effort lack validity and have tended to confuse the planning and evaluation of small farm activities. First, and most important, a small farm effort should not be under- taken for purposes of significantly affecting the food supply. Small farms account for only a small component of agricultural output. By definition, and within any reasonable expectation of the number of small farms, they will have little impact on the future total supply of food and fiber. Research, extension and teaching efforts concerned with assuring adequate supplies of food and fiber must be directed to large farms or not specific to size of farm. This is not to say that small farms will not have a significant impact on the production of certain specialty crops and same types of livestock. However, in terms of the aggregate supply of food and fiber, the impact of small farms will remain very small. Second, and related to the first point, is that small farm research, extension and teaching activities should not be undertaken for purposes of altering the number of farms producing most of this Nation's food and fiber. If the number of such farms is to be changed, it will have to be done using other more powerful tools of public policy--tax and price policy, restriction on resource use, etc. Research, extension and teaching programs can facilitate a particular size structure but they cannot be the principal force behind any reduction in the level of concentration in the farm sector.