nd and a supply function, as follows: 2a (Demand) P = 20 + 40, (Supply) Q. = Demand 40 = Supply in tho Table 2.3. Demand-Supply Schedule D S P 48 24 1 46 28 2 44 32 3 42 36 4 40 40 5 38 44 6 36 48 7 34 52 8 32 56 9 30 60 10 DEMAND AND SUPPLY IN RELATION TO HOUSING 00 million Filipinos, limited land area, and shortage pino families, the country continues to suffer from cted to reach 6.5 million units by 2030, Profriends reporters in a briefing in Makati City. (Danessa O. using shortage has been a perennial problem in of about 3.92 million units from 2001 to 2011. (S ers Association (SHDA)