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Bunuel
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kartickdey let me try to help

Economist: In response to prolonged inflationary pressure, several central banks have raised interest rates to their highest levels in over a decade. The intended effect is to curb inflation by reducing consumer demand. However, in Country X, core inflation has remained stubbornly high despite multiple rate hikes over the past year. Some policymakers now argue that raising rates further will have no effect. But that conclusion may be premature. Unlike in prior tightening cycles, consumers in Country X have unusually high cash reserves due to recent fiscal stimulus programs. Once those excess savings are depleted, current interest rates may begin to exert a stronger downward influence on inflation.

As per the argument, banks raise their interest rates to the highest level so that consumer demand will be reduced and accordingly the inflation will be curbed. Policymakers are arguing that in country X, the interest rates were raised multiple times in the last year, but still the inflation is high, and even if we raise the rates further, the rising rates won't be helpful.

In response to policymakers, economists conclude that policymakers' argument is too early to conclude about the effectiveness of rising rates, and economists reasoned by presenting data that the consumers have large savings, and when these savings deplete, the rising rates start showing their effectiveness.

To support the economist's point about why the conclusion made by policymakers may be premature, we have to find something that makes us believe more that the rising rates might be effective.

Option A presents data that, in previous decades, the rising rates took 18 months to show their effect, even when the savings of consumers were quite low. The word "particularly" acts as an intensifier for the 18-month delay. It is saying, "Even when people had little money saved, it still took a long time (18 months) for the rates to work." Since now the consumers have large savings, it might take more time to reflect the effect of rising rates. That's why policymakers concluding the effect may be prematurely made just by noticing 1 year of data.

Hope this helps.


kartickdey
Bunuel I think that the language in option A is misleading. It is stated in the option A : "In previous decades, interest rate hikes took up to 18 months to fully impact inflation, particularly in economies where household savings were low.". From this statement it appears that higher the savings, longer the time required to impact the inflation. In the solution exactly it has been explained in exactly reverse way but I think from the statement of option A it appears that the time and savings has an inverse relationship.
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