In a system of production, where the entire continuity of the reproduction process rests upon credit, a crisis must obviously occur — a tremendous rush for means of payment — when credit suddenly ceases and only cash payments have validity. At first glance, therefore, the whole crisis seems to be merely a credit and money crisis. And in fact it is only a question of the convertibility of bills of exchange into money. But the majority of these bills represent actual sales and purchases, whose extension far beyond the needs of society is, after all, the basis of the whole crisis. At the same time, an enormous quantity of these bills of exchange represents plain swindle, which now reaches the light of day and collapses; furthermore, unsuccessful speculation with the capital of other people; finally, commodity-capital which has depreciated or is completely unsaleable, or returns that can never more be realised again. The entire artificial system of forced expansion of the reproduction process cannot, of course, be remedied by having some bank, like the Bank of England, give to all the swindlers the deficient capital by means of its paper and having it buy up all the depreciated commodities at their old nominal values. Incidentally, everything here appears distorted, since in this paper world, the real price and its real basis appear nowhere, but only bullion, metal coin, notes, bills of exchange, securities. Particularly in centres where the entire money business of the country is concentrated, like London, does this distortion become apparent; the entire process becomes incomprehensible; it is less so in centres of production.
Incidentally in connection with the superabundance of industrial capital which appears during crises the following should be noted: commodity-capital is in itself simultaneously money-capital, that is, a definite amount of value expressed in the price of the commodities. As use-value it is a definite quantum of objects of utility, and there is a surplus of these available in times of crises. But as money-capital as such, as potential money-capital, it is subject to continual expansion and contraction. On the eve of a crisis, and during it, commodity-capital in its capacity as potential money-capital is contracted. It represents less money-capital for its owner and his creditors (as well as security for bills of exchange and loans) than it did at the time when it was bought and when the discounts and mortgages based on it were transacted. If this is the meaning of the contention that the money-capital of a country is reduced in times of stringency, this is identical with saying that the prices of commodities have fallen. Such a collapse in prices merely balances out their earlier inflation.
The incomes of the unproductive classes and of those who live on fixed incomes remain in the main stationary during the inflation of prices which goes hand in hand with over-production and over-speculation. Hence their consuming capacity diminishes relatively, and with it their ability to replace that portion of the total reproduction which would normally enter into their consumption. Even when their demand remains nominally the same, it decreases in reality.
It should be noted in regard to imports and exports, that, one after another, all countries become involved in a crisis and that it then becomes evident that all of them, with few exceptions, have exported and imported too much, so that they all have an unfavourable balance of payments. The trouble, therefore, does not actually lie with the balance of payments. For example, England suffers from a drain of gold. It has imported too much. But at the same time all other countries are over-supplied with English goods. They have thus also imported too much, or have been made to import too much. (There is, indeed, a difference between a country which exports on credit and those which export little or nothing on credit. But the latter then import on credit; and this is only then not the case when commodities are sent to them on consignment.) The crisis may first break out in England, the country which advances most of the credit and takes the least, because the balance of payments, the balance of payments due, which must be settled immediately, is unfavourable, even though the general balance of trade is favourable. This is explained partly as a result of the credit which it has granted, and partly as a result of the huge quantity of capital loaned to foreign countries, so that a large quantity of returns flow back to it in commodities, in addition to the actual trade returns. (However, the crisis has at times first broken out in America, which takes most of the commercial and capital credit from England.) The crash in England, initiated and accompanied by a gold drain, settles England’s balance of payments, partly by a bankruptcy of its importers (about which more below), partly by disposing of a portion of its commodity-capital at low prices abroad, and partly by the sale of foreign securities, the purchase of English securities, etc. Now comes the turn of some other country. The balance of payments was momentarily in its favour; but now the time lapse normally existing between the balance of payments and balance of trade has been eliminated or at least reduced by the crisis: all payments are now suddenly supposed to be made at once. The same thing is now repeated here. England now has a return flow of gold, the other country a gold drain. What appears in one country as excessive imports, appears in the other as excessive exports, and vice versa. But over-imports and over-exports have taken place in all countries (we are not speaking here about crop failures, etc., but about a general crisis); that is over-production promoted by credit and the general inflation of prices that goes with it.
(CapitalW, Volume 3, Chapter 30, Money-Capital and Real Capital, I. pp. 478-9)