at once, and generally rises rapidly.

This is the surer to happen that Lombard Street is, as has been
shown before, a very delicate market. A large amount of money is
held there by bankers and by bill-brokers at interest: this they
must employ, or they will be ruined. It is better for them to reduce
the rate they charge, and compensate themselves by reducing the rate
they pay, rather than to keep up the rate of charge, if by so doing
they cannot employ all their money. It is vital to them to employ
all the money on which they pay interest. A little excess therefore
forces down the rate of interest very much. But if that low rate of
interest should cause, or should aid in causing, a great growth of
trade, the rise is sure to be quick, and is apt to be violent. The
figures of trade are reckoned by hundreds of millions, where those
of loanable capital count only by millions. A great increase in the
borrowing demands of English commerce almost always changes an
excess of loanable capital above the demand to a greater deficiency
below the demand. That deficiency causes adversity, or apparent
adversity, in trade, just as, and in the same manner, that the
previous excess caused prosperity, or apparent prosperity. It causes
a fall of price that runs through society; that fall causes a
decline of activity and a diminution of profitsa painful contraction
instead of the previous pleasant expansion.

The change is generally quicker because some check to credit happens
at an early stage of it. The mercantile community will have been
unusually fortunate if during the period of rising prices it has not
made great mistakes. Such a period naturally excites the sanguine
and the ardent; they fancy that the prosperity they see will last
always, that it is only the beginning of a greater prosperity. They