Arc Own-Price Elasticity What is the“ average”own- price elasticity of demand for prices in an interval centered on p;? p1+ o△ 、 p1 X,P%△ X," Xi X*Arc Own-Price Elasticity pi Xi * pi ’ pi ’+h pi ’-h What is the “average” own-price elasticity of demand for prices in an interval centered on pi ’? Xi X '" i "  X p i i i i X p * , % * % =  