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Lagging Doubts
When Gerald Ford became president, he and his economic
advisors fixed on inflation as the number one economic
problem facing the nation. In a highly publicized search for
solutions, President Ford hosted a two-day "summit" meeting
of academic, political, and private sector leaders early in
October of 1974. Shortly after this meeting, the president
proposed a 5% income tax surcharge on some individuals and
corporations as a measure to curb excess demand and pull
down inflation. However, in the next few months the
unemployment rate soared, and in his State of The Union
message in January of 1975, the president had abandoned his
proposed tax increase in favor of a $15 billion tax cut to
fight recession.
The sudden switch in proposed policy would have made the
Ford administration look good if the economy had peaked
between October of 1974 and January of 1975. Then it could
have boasted that they had quickly changed policy
recommendations when conditions changed. Unfortunately the
dates that the National Bureau of Economic Research gives to
the peaks and troughs of business activity show that the
Ford administration had its timing wrong. The Bureau dates
the peak of business activity in December of 1973,
and the trough in November of 1974. Thus, the Ford
Administration was gearing up to fight inflation just as the
recession was about to hit bottom, and began preparing its
fight against the recession a few months after it had
already ended.
The Ford Administration suffered from a dramatic case of
a common problem, the problem of recognition lag.
Usually policy makers need several months to recognize that
a problem is developing. Although many statistics are
available fairly quickly, sometimes within a few weeks,
revisions months later can change the message that they
give. Also, there is much random movement in many series, so
that a one or two month movement may not indicate that
anything important is happening. Only when several months
have passed can one see any patterns that are
developing.
After a problem is recognized, policy makers need time to
decide what to do, a time period called the decision
lag. They then must enact their decision, which can also
take time, the implementation or action lag.
Once the policy has begun, it does not affect peoples'
behavior immediately. A change in taxes, for example, will
affect consumption, but the permanent-income hypothesis
suggests that sizable changes take time. Similarly, an
increase in money stock will not immediately affect
spending. The increase in money stock will throw the market
for money balances into disequilibrium. As people adjust in
this market, they will throw other markets, such as
financial markets out of equilibrium. As these markets
adjust, the goods market will be thrown out of equilibrium.
Only with time, which perhaps may be measured in years, will
full adjustment to these disequilibrium situations take
place. We can call this time required for the actions to
change behavior the take-effect lag.
The existence of lags may mean that by the time policy
has its full effect, the problem with which it was meant to
deal may have disappeared. The graph below illustrates with
the dotted line a path that the economy might follow in the
absence of any government actions. This path does not
coincide with the best possible path, or the ideal path, of
the economy. If economists could fine-tune the economy, they
would make the economy follow the ideal path. But if they
actually try to fine tune, they may find that they do not
recognize the problem until time b and do not take
action until time c. The major impact of their action
may not show up in the economy until time d, by which
time the problem has changed. It is possible that attempts
to stabilize the economy can, because of the problem of
lags, make the economy less stable rather than more
stable.
Recognition, decision, and take-effect lags occur in most
decision-making processes, not just in macroeconomic policy.
Businesses have these lags in many different places. For
example, automobile manufacturers occasionally discover that
slow sales have allowed inventories to rise too high. Car
sales fluctuate a lot from day to day and week to week, so
that car manufacturers cannot discover that they have a
problem on the first day it begins, but only after several
weeks or months of slow sales. Once they decide that they
have a problem they must decide how to solve it. They can
cut their work force, advertise more, cut prices, find a
sales promotion, or some combination of these. Once they
decide what to do, it takes a while for unwanted inventory
to be sold.
Although both fiscal and monetary policy have lags, a
special problem of fiscal policy, at least in the United
States, is that the decision-making part of the process can
be long and unpredictable. The executive branch usually
proposes fiscal policy, but the legislature must enact it.
The political process in a democracy is designed to take
time, to allow a variety of inputs and opinions, and to
avoid hasty judgment. Hearings are held by subcommittees and
committees, there are largely symbolic debate on the floors
of the House and Senate, and there are often alterations to
the President's original proposal inspired either by
principle or narrow interests. If the executive and
legislative branches are in a cooperative mood, the process
may be fairly quick, but if they are in conflict, as they
often are in the United States, fiscal legislation may take
years to pass if it passes at all. Macroeconomic policy with
this sort of unpredictability cannot be used on a regular
basis.
In contrast, monetary policy in the United States has
almost no decision lag, though it has other sorts of lags.
The decision-making body consists of the twelve voting
members of the Federal Open Market Committee, a structure
designed for making decisions quickly. A simple majority of
the FOMC can change policy in a telephone conference and
open-market operations can begin within hours of a
decision.
Even if the Keynesian multiplier model correctly
describes the power of fiscal policy, there would be strong
reasons not to use it as a discretionary tool. The
uncertainties and delays of the political process can make
it unreliable, plus it has important side-effects. However,
there is reason to believe that fiscal policy is not nearly
as potent as the simple model suggests, and this drives
a final nail into the coffin of
fiscal policy.
  
Copyright
Robert Schenk
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