interest," that is, a shift of the bend} The expansion sought after has caused an increment in {harmony} amount. The increment popular could emerge out of changing preferences and styles, wages, value changes in integral and substitute merchandise, market assumptions, and number of purchasers This would ca use the whole interest bend to move changing the harmony cost and amount. Note in the graph that the shift of the interest bend, by making another harmony cost arise, brought about development along the inventory,r bend from the point {(11, P1} direct [(12, P2}