gld inventory under 790 tons, page-31

The market clearance price is the price at which no backlog of orders is left(the point at which demand intercepts supply). If a market is not at that point then HOPEFULLY THERE IS A DYNAMIC process leading to it. But the demand and supply curves are considered as given or FIXED, although that may change with the passing of time.

For instance. Bellow you have the demand for money curve at two different points in time. Rising real incomes and increasing numbers of people employed will increase the demand for money at each rate of interest. Therefore higher real national income causes an outward shift in the demand for money. This is shown in the diagram below