we demonstrate how an increase in market price can increase the consumption of
X by a type-1 household. As x and p are fixed, an increase in market price raises
the implicit income of the type-1 household. This is depicted as the clockwise
rotation around point A of the budget line from BC to LN. The tangency of an
indifference curve with the new budget line occurs at M, which is the new equi-
librium for the type-1 household. In this case the increase in p causes the type-1
household to consume more (moving from E to M).14
Fig 4 about here.
3.1 Effects on Price Indices
The market-clearance condition is now
αx1 [p, y)1 +(p - p))x)] + (1 - α)x2(p, y)2) = xs.
(12)
14 Figure 4 represents the case in which the household consumption of the DTP good is less
than the plan-track quantity allocation. When, instead, it consumes more than this allocation,
starting at a point on AC, the price change causes it to shift to a point on AN.
20