Effects of inflation

A small amount of inflation can be viewed as having a beneficial effect on the economy.^[3] One reason for this is that it can be difficult to renegotiate prices and wages. With generally increasing prices it is easier for relative prices to adjust.

Many prices are "sticky downward" and tend to creep upward, so that efforts to attain a zero inflation rate (a constant price level) punish other sectors with falling prices, profits, and employment. Efforts to attain complete price stability can also lead to deflation, which is generally viewed as a negative by Keynesians because of the downward adjustments in wages and output that are associated with it.

With inflation, the price of any given good is likely to increase over time, therefore both consumers and businesses may choose to make purchases sooner rather than later. This effect tends to keep an economy active in the short term by encouraging spending and borrowing, and in the long term by encouraging investments. But inflation can also reduce incentives to save, so the effect on gross capital formation in the long run is ambiguous.

Inflation is also viewed as a hidden risk pressure that provides an incentive for those with savings to invest them, rather than have the purchasing power of those savings erode through inflation. In investing, inflation risks often cause investors to take on more systematic risk, in order to gain returns that will stay ahead of expected inflation.^{[citation needed]}

Inflation also gives central banks room to maneuver, since their primary tool for controlling the money supply and velocity of money is by setting the lowest interest rate in an economy - the discount rate at which banks can borrow from the central bank. Since borrowing at negative interest is generally ineffective, a positive inflation rate gives central bankers "ammunition", as it is sometimes called, to stimulate the economy. As central banks are controlled by governments, there is also often political pressure to increase the money supply to pay government services, this has the added effect of creating inflation and decreasing the net money owed by the government in previously negotiated contractual agreements and in debt.

For these reasons, many economists see moderate inflation as a benefit; some business executives see mild inflation as "greasing the wheels of commerce."^[4][5] But other economists have advocated reducing inflation to zero as a monetary policy goal - particularly in the late 1990s at the end of a long disinflationary period, when the policy seemed within reach; and some have even advocated deflation instead of inflation.

In general, high or unpredictable inflation rates are regarded as bad:

• Uncertainty about future inflation may discourage investment and saving.
• Redistribution
  • Rent Seeking - happens when resources are used to merely transfer wealth rather than produce it. e.g. a company tries to gauge and combat the costs of inflation.
  • inflation redistributes income from those on fixed incomes, such as pensioners, and shifts it to those who draw a variable income, for example from wages and profits which may keep pace with inflation.
  • Debtors may be helped by inflation due to reduction of the real value of debt burden.
  • Inflation redistributes wealth from those who lend a fixed amount of money to those who borrow. For example, where the government is a net debtor, as is usually the case, it will reduce this debt redistributing money towards the government. Thus inflation is sometimes viewed as similar to a hidden tax.
  • A particular form of inflation as a tax is Bracket Creep (also called fiscal drag). By allowing inflation to move upwards, certain sticky aspects of the tax code are met by more and more people. For example, income tax brackets, where the next dollar of income is taxed at a higher rate than previous dollars, tend to become distorted. Governments that allow inflation to "bump" people over these thresholds are, in effect, allowing a tax increase because the same real purchasing power is being taxed at a higher rate.
• International trade: Where fixed exchange rates are imposed, higher inflation than in trading partners' economies will make exports more expensive and tend toward a weakening balance of trade.
• Shoe leather costs: Because the value of cash is eroded by inflation, people will tend to hold less cash during times of inflation. This imposes real costs, for example in more frequent trips to the bank. (The term is a humorous reference to the cost of replacing shoe leather worn out when walking to the bank.)
• Menu costs: Firms must change their prices more frequently, which imposes costs, for example with restaurants having to reprint menus.
• Relative Price Distortions: Firms do not generally synchronize adjustment in prices. If there is higher inflation, firms that do not adjust their prices will have much lower prices relative to firms that do adjust them. This will distort economic decisions, since relative prices will not be reflecting relative scarcity of different goods.
• Rising inflation can prompt trade unions to demand higher wages, to keep up with consumer prices. Rising wages in turn can help fuel inflation. In the case of collective bargaining, wages will be set as a factor of price expectations, which will be higher when inflation has an upward trend. This can cause a wage spiral.^{[citation needed]} In a sense, inflation begets further inflationary expectations.
• Hoarding: people buy consumer durables as stores of wealth in the absence of viable alternatives as a means of getting rid of excess cash before it is devalued, creating shortages of the hoarded objects.
• Hyperinflation: if inflation gets totally out of control (in the upward direction), it can grossly interfere with the normal workings of the economy, hurting its ability to supply.