Assuming that the underlying demand relation is a linear function of price and income, use your spreadsheet program to obtain least squares estimates. The Scanner Law requires that the price of most items be clearly displayed.This can be done with signs, electronic readers, or price stickers. The law of supply and demand explains how changes in a product's market price relate to its supply and demand. MSHDA releases two new studies assessing statewide housing needs. Participate in Demand Response to reduce grid stress during peak demand times and save on your electric bill. Act now to make a difference. Consider the combined yearly onion supply and demand schedules for one local supermarket below. Michigan utility regulators on Dec. One area that is starting to see an increase in outbound spot rates is in Michigan.