Stephen Wunker has published an article on costovation and how it is creating an agricultural revolution in Africa.  In Africa, there is a product which smallholder farms urgently need, yet which few understand or think they can afford: insurance. Droughts, pests, floods, and other natural maladies can devastate a crop for the year and put farmers – as well as whole communities – at great risk of extreme hardship. Yet, with few exceptions, the idea of paying a premium…