The attention economy considers being human attention (time spent on a specific medium) the most valuable currency of our time. It's all about how to market attention in digital media. If you want to dig a bit deeper into the topic, you can read an article I've written about exactly that about 2 years ago :-)
Just follow this link to my article on Steemit: Today I learned what the attention market is and its impact on society
Hope that answers your question :-)