<prompt> Translate the following text to EnglishHata kama mtoaji mkuu wa kuponi ameshuka kwa muda nyuma ya curve, bado anaweza kawaida kubadilisha hali kwa kutoa kuponi zaidi - ambayo ni, na upanuzi wa fedha nguvu kama wale ambao kumaliza mapumziko ya 1981-82 na 1990-91.  <response>: Even if the head coupon issuer has fallen temporarily behind the curve, he can still ordinarily turn the situation around by issuing more coupons--that is, with a vigorous monetary expansion like the ones that ended the recessions of 1981-82 and 1990-91. 