60 likes | 356 Views
Supply and Demand Scenarios. Fall 2013. Effects of Shifts on Equilibrium. Graph the following to determine the effects of these shifts:. Single Shifts. Single shifts produce predictable results
E N D
Supply and Demand Scenarios Fall 2013
Effects of Shifts on Equilibrium Graph the following to determine the effects of these shifts:
Single Shifts Single shifts produce predictable results When only one line shifts, the other experiences a shift along the original curve (“quantity supplied/demanded”)
Dual Shifts Dual shifts create ambiguous results The overall effect is the result of the relative size of shifts
Return to Equilibrium? Surpluses/shortages are depicted on the graph as the gap between supply and demand at a certain price (i.e., the original equilibrium price) Some changes return to their original point of equilibrium over time, but – in the short-term – establish a new PE and QE Other changes are permanent and establish a new PE and QE
Effects on Complements & Substitutes • Complements tend to follow the same pattern as the product in question – though this can be ambiguous: For instance, the law of demand tends to apply: Price of x, Demand for y (its complement) But the law of supply doesn’t always follow. • Substitutes follow the opposite pattern (especially with regard to demand), but again can be ambiguous: • Price of x, Demand for z (its substitute)