Austerity affect economic growth :
- The Global Crisis that began in
2008 has rekindled the debate on the impact of fiscal policy on
economic growth. At the outset of the Crisis the focus was on
whether fiscal stimulus boosts economic growth. Since 2011 or so,
with the Crisis becoming more severe in some European countries and
Greece in particular, the emphasis has shifted to whether fiscal
adjustment should be seen as part of the emerging ‘consensus’ view
(Baldwin and Giavazzi 2015) on the causes of the output loss.
Several researchers have delved into the question using novel,
sophisticated methods, but these have proved difficult to
communicate to the public at large.
- Meanwhile, public discourse has
been influenced by simple charts analysing the correlations between
measures of fiscal ‘austerity’ and economic growth for small
samples of countries over limited time periods. Academic studies
have not further developed this approach, perhaps because of
concerns about the direction of causality. Although such concerns
are legitimate, the modest task of analysing empirical association
in a more systematic manner may be worthwhile. In a recent study
(Mauro and Zilinsky 2015), we explore the correlations in the data
starting from the simplest and gradually building up – in a
step-by-step, transparent manner – to multivariate regressions
based on various samples of countries for different periods. The
results show that simple correlations are no longer significant
when considering slightly longer sample periods and omitting
outliers, like Greece, from the sample. In multivariate regressions
using broader samples, a tightening of fiscal policy is
significantly associated with lower economic growth only in some
specifications and estimation samples.
- An increase in government
spending increases budget deficit, which increases government
borrowing for higher deficit financing. As a result, interest rate
will increase. Higher interest rate will decrease the quantity of
investment demanded.
- In following graph, I0 is the
investment demand curve. Initial position is at point A with
initial interest rate r0 and quantity of investment demanded Q0.
After interest rate rises to r1, the economy moves upward along I0
to point B with lower quantity of investment demanded Q1.
Crowding out
:
- In economics, crowding
out is a phenomenon that occurs when increased
governmentinvolvement in a sector of the market
economysubstantially affects the remainder of the market, either on
the supply or demandside of the market.
- One type frequently discussed is
when expansionary fiscal policy reduces investment spending by the
private sector. The government spending is "crowding out"
investment because it is demanding more loanable funds and thus
causing increased interest rates and therefore reducing investment
spending. This basic analysis has been broadened to multiple
channels that might leave total output little changed or even
smaller
Crowding out from government
borrowing :
- One channel of crowding out is a
reduction in private investmentthat occurs because of an increase
in government borrowing. If an increase in government spending
and/or a decrease in tax revenues leads to a deficit that is
financed by increased borrowing, then the borrowing can increase
interest rates, leading to a reduction in private investment. There
is some controversy in modern macroeconomics on the subject, as
different schools of economic thought differ on how households and
financial markets would react to more government borrowing under
various circumstances.
- Income increases more than interest
rates increase if the LM (Liquidity preference—Money supply) curve
is flatter.
- Income increases less than interest
rates increase if the IS (Investment—Saving) curve is flatter.
- Income and interest rates increase
more the larger the multiplier, thus, the larger the horizontal
shift in the IS curve.