Although the idea of marketers as 'mixers of ingredients' caught on, marketers could not reach any real consensus about what elements should be included in the mix until the 1960s. The 4 Ps, in its modern form, was first proposed in 1960 by E. Jerome McCarthy; who presented them within a managerial approach that covered analysis, consumer behavior, market research, market segmentation, and planning. Phillip Kotler, popularised this approach and helped spread the 4 Ps model. McCarthy's 4 Ps have been widely adopted by both marketing academics and practitioners.