Beef and pork farm-retail price spreads have increased more than one-third since 1962, but year-to-year increases varied widely. Increases in beef and pork price spreads have accompanied similar increases in costs of labor and other marketing services. Seasonal and annual movements in price spreads reflect in part price adjustments to changing supplies and marketings of beef and pork, seasonal changes in consumer demand and incomes, and lags in the timing of price adjustments between various market levels.