How can we apply behavioural economics to marketing?

Nowaday we have to take care about both economy and political situation of a country, region or area to lead marketing actions as well.

We can not promote or propose and plan a marketing compaign whereas the economic situation is not favorable for.

Actually markeintg used many of Behavioral Economic tools and methods long before there was even economy (sometimes intutively and sometime purposely ) but without having a framework or theory for it ( placing a product in front buyers or kids to attrackt them to buy is a classic nudge example ). marketing and BE is well connected and we can apply many of the BE toold ( for example Nudge, chocice archetecture, simplied information ) to infuleunce customer attention and make them buy our product and service  ( one very common  example :  make default choice is automated subscription and cancelation is an effort on the customer side ) but of course it should ethical marketing