Since impact investing was coined as a cool marketing term for a range of (existing) investment opportunities with developmental, social, ecological and cultural ambitions, distinctive types have emerged which I characterize. Whether you are interested for financial, non financial or both reasons: each type has its specific characteristics and appeal.
You will find a short 3 page explanation as a pdf presentation or on LinkedIn Pulse and a long one 20p on my blog goo.gl/Wnktge