ET catalyse: ROI and the other marketing jargons decoded

Some say that for every rupee spent on marketing these days, there should be a return of five rupees in terms of business generated. But then as John Wanamaker famously stated in early 20th century - “Half the money I spend on advertising is wasted; the trouble is I don't know which half”. How stressed is the marketing rupee today? Was the stress always there or is it going up only now? And what are the implications of this stress on creative freedom, minimum thresholds to make an impact etc? Watch 4 of the top Indian business leaders as they candidly espouse their opinions on one of the most sensitive topics in marketing today - ROI, with our moderator Deepak.