Evaluating the impact of monetary policy on output, employment, prices and agents

Overview

Effect of higher interest rates on firms, monetary policy described as a blunt instrument and time lags limit what monetary policy can achieve.

What you need to know

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Questions from this subtopic

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1. 1

   Analyse the effect of a sustained rise in interest rates on output and employment.

   Model answer

   Higher borrowing costs and a stronger incentive to save reduce consumption, higher required returns cut investment, and an appreciating currency reduces net exports, so aggregate demand and therefore real output fall. As orders weaken, firms cut overtime, stop recruiting and eventually make redundancies, so cyclical unemployment rises, with the sharpest effects in construction, housing-related trades, retail durables and exporting manufacturers. The scale depends on how much household debt exists, how quickly rate changes reach borrowers, and how strong world demand is at the time.

2. 2

   Who gains and who loses among households when interest rates rise?

   Model answer

   Savers gain a higher nominal return, which particularly benefits older households holding deposits, and anyone planning to buy a house may gain if prices fall. Borrowers lose, especially households with large variable-rate mortgages, who see a substantial sum removed from monthly disposable income, and renters can lose too if landlords pass higher buy-to-let costs into rents. The distribution of the gains and losses tends to run from younger, indebted households towards older, asset-rich ones, which is one reason interest rate decisions are politically sensitive.

3. 3

   Analyse the effect of higher interest rates on firms.

   Model answer

   Firms face a higher cost of finance for both working capital and new projects, so marginal investment is postponed and capital-intensive businesses are squeezed hardest. Weaker consumer demand reduces turnover, and highly geared firms may find that interest payments consume the profits that were servicing the debt, raising the risk of failure. Exporters face the additional problem that the currency has appreciated, making their goods dearer abroad, while importers of components enjoy a partial offset from cheaper inputs.

4. 4

   Evaluate the effectiveness of monetary policy when interest rates are already close to zero.

   Model answer

   Its main instrument is largely exhausted, because nominal rates cannot fall far below zero before savers withdraw cash, so a central bank facing a deep recession at that point has little conventional room left. Expectations matter more in these conditions: if households and firms expect weak demand to persist they will not borrow however cheap credit becomes, so the transmission from a rate cut to spending weakens just when it is most needed. Fiscal policy therefore carries more of the burden, and the limits of the interest-rate instrument are a genuine constraint rather than a technical detail.

5. 5

   Why is monetary policy described as a blunt instrument?

   Model answer

   One rate applies to the whole country and to every sector at once, so it cannot be tightened in an overheating region while being loosened in a depressed one. A rise aimed at cooling consumer credit also hits an exporter struggling with a strong currency and a manufacturer planning a new plant. Its effects are also uneven across households, falling heavily on those with mortgages and hardly at all on those who own their homes outright.

6. 6

   How do time lags limit what monetary policy can achieve?

   Model answer

   Data on output and inflation arrive with a delay, decisions take effect on spending over many months, and the full impact on inflation typically appears about eighteen months to two years later. A central bank therefore has to act on forecasts, and forecasts of demand and of supply shocks are frequently wrong. The risk is that policy tightens into a slowdown that has already begun or loosens into a recovery that is already under way, adding to the cycle rather than smoothing it.

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