Price differentials mean the difference or spread between two related series of prices. This bulletin reports on two types of differentials: (1 ) market differentials, the difference in the price of hogs of the same weight and grade between specific markets; (2 ) weight differentials, the difference in the price of hogs of different weights, usually of comparable grades, at the same market. Both market differentials and weight differentials may change from one period to another.

The study of price differentials for slaughter hogs will aid in choosing among several available markets the most profitable place to sell each weight and grade of hogs. The study will also show the time of the year when prices are likely to be highest for different weights of hogs.