"p1(x1-w1)+p2(x2-w2)=0 If (x1-w1) is positive we say that the consumer is a net buyer or net demander of good1; if it is negative we say that she is a net seller or net supplier."
"Thus if a person is a lender and the interest rate increases ,he will remain a lender. If a person is a borrower and the interest rate decreases, he will remain a borrower. On the other hand, if a person is a lender and the interest rate decreases, he may well decide to switch to being a borrower; s"