DEFLATION

WHAT IS DEFLATION?

In economics, deflation is a sustained decrease in the general price level of goods and services. Deflation occurs when the annual inflation rate falls below zero percent, resulting in an increase in the real value of money — a negative inflation rate. This should not be confused with disinflation, a slow-down in the inflation rate (i.e. when the inflation decreases, but still remains positive). Inflation reduces the real value of money over time, conversely, deflation increases the real value of money.

Most economists believe that deflation is a problem in a modern economy because of the danger of a deflationary spiral. Deflation is also linked with recessions and with the Great Depression. Additionally, deflation also prevents monetary policy from stabilizing the economy because of a mechanism called the liquidity trap. However, historically not all episodes of deflation correspond with periods of poor economic growth.

Effects of deflation

In economics, deflation refers to a general reduction in the level of prices below zero percent year-on-year inflation. Deflation should not be confused with a temporary fall in prices; instead, it is a sustained fall in prices that occurs when the inflation rate passes down below zero percent.

In the IS/LM model (that is, the Income and Saving equilibrium/ Liquidity Preference and Money Supply equilibrium model), deflation is caused by a shift in the supply and demand curve for goods and interest, particularly a fall in the aggregate level of demand. That is, there is a fall in how much the whole economy is willing to buy, and the going price for goods. Because the price of goods is falling, consumers have an incentive to delay purchases and consumption until prices fall further, which in turn reduces overall economic activity - contributing to the deflationary spiral.

Since this idles capacity, investment also falls, leading to further reductions in aggregate demand. This is the deflationary spiral. An answer to falling aggregate demand is stimulus, either from the central bank, by expanding the money supply, or by the fiscal authority to increase demand, and to borrow at interest rates which are below those available to private entities.

A different view is that deflation increases sales and economic activity by making essentials (food, housing, fuel etc.) which cannot be delayed, more affordable to struggling consumers, thereby reducing severity and duration of recession.

Inflation has the opposite effect and thus frequently precedes recessions. For example prices of these essentials sky-rocketed before the recession of 2008.

In more recent economic thinking, deflation is related to risk: where the risk-adjusted return on assets drops to negative, investors and buyers will hoard currency rather than invest it, even in the most solid of securities. This can produce the theoretical condition, much debated as to its practical possibility, of a liquidity trap. A central bank cannot, normally, charge negative interest for money, and even charging zero interest often produces less stimulative effect than slightly higher rates of interest. In a closed economy, this is because charging zero interest also means having zero return on government securities, or even negative return on short maturities. In an open economy it creates a carry trade, and devalues the currency producing higher prices for imports without necessarily stimulating exports to a like degree.

In monetarist theory, deflation is related to a sustained reduction in the velocity of money or number of transactions. This is attributed to a dramatic contraction of the money supply, perhaps in response to a falling exchange rate, or to adhere to a gold standard or other external monetary base requirement.

Deflation is generally regarded negatively, as it causes a transfer of wealth from borrowers and holders of illiquid assets, to the benefit of savers and of holders of liquid assets and currency. In this sense it is the opposite of inflation (or in the extreme, hyperinflation), which is a tax on currency holders and lenders (savers) in favor of borrowers and short term consumption. In modern economies, deflation is caused by a collapse in demand (usually brought on by high interest rates), and is associated with recession and (more rarely) long term economic depressions.

In modern economies, as loan terms have grown in length and loan financing (or leveraging) is common among all sorts of investments, the penalties associated with deflation have grown larger. Since deflation discourages investment and spending, because there is no reason to risk on future profits when the expectation of profits may be negative and the expectation of future prices is lower, it generally leads to, or is associated with a collapse in aggregate demand. Without the "hidden risk of inflation", it may become more prudent just to hold onto money, and not to spend or invest it.

Deflation is, however, the natural condition of hard currency economies when the rate of increase in the supply of money is not maintained at a rate commensurate to positive population (and general economic) growth. When this happens, the available amount of hard currency per person falls, in effect making money more scarce; and consequently, the purchasing power of each unit of currency increases. The late 19th century provides an example of sustained deflation combined with economic development under these conditions.

Deflation also occurs when improvements in production efficiency lower the overall price of goods. Improvements in production efficiency generally happen because economic producers of goods and services are motivated by a promise of increased profit margins, resulting from the production improvements that they make. Competition in the marketplace often prompts those producers to apply at least some portion of these cost savings into reducing the asking price for their goods. When this happens, consumers pay less for those goods; and consequently deflation has occurred, since purchasing power has increased.

While an increase in the purchasing power of one's money sounds beneficial, it can actually cause hardship when the majority of one's net worth is held in illiquid assets such as homes, land, and other forms of private property. It also amplifies the sting of debt, since-- after some period of significant deflation-- the payments one is making in the service of a debt represent a larger amount of purchasing power than they did when the debt was first incurred. Consequently, deflation can be thought of as a phantom amplification of a loan's interest rate. If, as during the Great Depression in the United States, deflation averages 10% per year, even a 0% loan is unattractive as it must be repaid with money worth 10% more each year. Since

Under normal conditions, the Fed and most other central banks implement policy by setting a target for a short-term interest rate--the overnight federal funds rate in the United States--and enforcing that target by buying and selling securities in open capital markets. When the short-term interest rate hits zero, the central bank can no longer ease policy by lowering its usual interest-rate target.,

the usual methods of regulating the money supply may be ineffective, as even lowering the short-term interest rate to zero may result in a "real" interest rate which is rather high; thus other mechanisms must be brought into play to increase the supply of money such as purchasing assets or quantitative easing (printing money). As the current Chairman of the United States Federal Reserve, Ben Bernanke, said in 2002, "...sufficient injections of money will ultimately always reverse a deflation."

This lesson about protracted deflationary cycles and their attendant hardships has been felt several times in modern history. During the 19th century, the Industrial Revolution brought about a huge increase in production efficiency, that happened to coincide with a relatively flat money-supply. These two deflationary catalysts led, simultaneously, not only to tremendous capital development, but also to tremendous deprivation for millions of people who were ill-equipped to deal with the dark side of deflation. Business owners-- on average, better educated in economic theory than their unfortunate cohorts (or just better able to withstand the economic stresses) -- recognized the deflation cycle as it unfolded, and positioned themselves to leverage its beneficial aspects.

Hard money advocates argue that if there were no "rigidities" in an economy, then deflation should be a welcome effect, as the lowering of prices would allow more of the economy's effort to be moved to other areas of activity, thus increasing the total output of the economy. However, while there have been periods of 'beneficial' deflation (especially in industry segments, such as computers), more often it has led to the more severe form with negative impact to large segments of the populace and economy.

Since deflationary periods favor those who hold currency over those who do not, they are often matched with periods of rising populist sentiment, as in the late 19th century, when populists in the United States wanted to move off hard money standards and back to a money standard based on the more inflationary (because more abundantly available) metal silver.