<prompt> Translate the following text to EnglishKwa upande mwingine, wachumi wengine wamegundua kuwa matumizi ya watumiaji yenye nguvu - yaliyochochewa na akiba ya chini na athari ya utajiri iliyojadiliwa hapo juu - imechochea kuongezeka kwa uwekezaji wa biashara na ukuaji mkubwa wa kiuchumi katika uchumi wa Marekani katika miaka ya hivi karibuni.  <response>: On the other hand, other economists have observed that strong consumer spending-boosted by low saving and the wealth effect discussed above-has fueled the surge in business investment and strong economic growth in the U.S. economy in recent years. 