In early April, Twitter launched Promoted Tweets, combining paid and organic media. Brands can now advertise promoted tweets on search pages, however the community has power over which Tweets will appear measured by Twitter’s new metric called “resonance”, which factors in behaviours like the retweets, @mentions, #hashtags and avatar clicks. Brands can now purchase CPM based adverts to promote these popular tweets at the top of a Twitter search term — even in categories they aren’t well known in, influencing awareness. Read more – ‘What Twitter’s Promoted Tweets Business Model Means to the Ecosystem’.
Adverse selection, anti-selection, or negative selection is a term used in economics, insurance, statistics, and risk management. On the most abstract level, it refers to a market process in which bad results occur due to information asymmetries between buyers and sellers: the "bad" products or customers are more likely to be selected. Read more – ‘The Principle of Adverse Selection’.