Is, however, the figure for 1909, 387 billions, an acceptable figure? Is it not decidedly too large? It is made up, it will be recalled, by taking the figures for MV and M'V', adding them together to get one side of the equation, and declaring them equal to PT. P is then declared to be $1, by the arbitrary device of taking as the unit of T one dollar's worth of every sort of good at the prices of 1909. T is, then, 387 billions, since MV plus M'V' equals 387 billions. The theory underlying this is that deposits made in banks correctly represent trade.[421] Our criticisms as to the absolute magnitude assigned to T (and hence to MV plus M'V') will rest in large measure in challenging this assumption. It is our contention[422] that deposits made in banks very greatly overcount trade. Deposits made in banks include taxes and other public revenues; they include loans and repayments, and interest-payments; they include gifts and benevolences, money sent by parents to children away from home, pensions, payments of insurance losses, annuities, dividends on stocks, payments to and from savings and loan associations, fines, contributions to churches, and other non-commercial organizations, etc., etc. None of this represents trade. But further, whether payments are in trade or not, many times indeed does it happen that several checks are drawn in connection with the same transaction. Professor Kemmerer, entertaining this possibility, thought it might be neutralized by cases where the same check passes through several hands, making payments in several different transactions. He calls this, however, a "gratuitous assumption of unverifiable accuracy,"[423] and makes no claim to have given the matter careful study. In general, I think it safe to hold that the case where a single check passes through several hands is not important.[424] It will happen chiefly with small checks in small places, or with small checks paid to laborers. It is the pecuniary magnitude of checks, rather than their number, that counts here. I am informed by several bankers that large checks are almost universally deposited at once. This is for several reasons: (1) The recipient of the check wishes to make sure that it is good. (2) It is unlikely that the check is of the right size for another transaction, unless the recipient is a mere agent for a third party, in which case he should (but commonly does not) pass it on to his principal, if double counting is to be avoided. (3) Every person who handles sums of any size wishes a record of the transaction, and his own canceled check is a receipt which he would not have if he passed on the check of another.