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Equity prices, like the prices of everything, are determined by the interaction
of supply and demand factors. The latest flow-of -funds data from the Federal
Reserve have an interesting factoid on the supply-side of the equities-price
equation. In the fourth quarter of last year, net issuance of domestic corporate
equities totaled $986 billion at a seasonally-adjusted annual rate - a record
dollar amount of issuance (see Chart 1). This also was a record issuance relative
to nominal GDP - 6.9% (see Chart 2).
Chart 1

Chart 2

Who was doing all of this issuing? Chart 3 shows us that it was the financial
system, desperate for new capital to replace a huge amount of old "depreciated" capital,
that was doing all the issuing. At a seasonally-adjusted annual rate, financial
institutions were net issuers of equity to the tune of $1.4 trillion in the
last year's fourth quarter while nonfinancial corporations were net "retirers" of
$450 billion of equity.
Chart 3

At the same time the financial institutions were issuing record absolute and
relative amounts of new equity, I think it is safe to say that investors' demand
for financial institutions' equities was somewhat inhibited. Chart 4 shows
that the yield on AA-rated debt issued by financial institutions was rising
sharply in both absolute terms as well as relative to AA-rated debt issued
by industrial corporations. If investors were becoming much more risk averse
with regard to financial institutions' investment grade debt, it stands to
reason they were more risk averse with regard to financial institutions' equity
capital.
Chart 4

In sum, there is no mystery as to why the broad U.S. stock indexes took a
dive in the fourth quarter of last year. It simply was a matter of an increase
in supply accompanied a decrease in demand.
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