<prompt> Translate the following text to EnglishIkiwa umesoma makala hii, unaweza kugundua kwamba kuna sababu nyingi za sababu za kuendesha biashara kwa njia ya uchumi, lakini kwa sababu ya sababu nyingine, unaweza kuamua kuendesha biashara kwa njia ya uchumi wa jumla, kama vile Robert Samuelson.  <response>: If you didnt stop to find out why useful business cycle models still need to incorporate sticky prices, click here. And if you missed the article by Robert Samuelson on macroeconomic analysis, click here. 