This week’s readings / links include Graham Duncan’s framework for the investing game, a short interview with Stephen Diggle, a look at Alibaba’s accounting, more from Dan Rasmussen on private equity and a review of Steven Pinker’s Enlightenment Now. Also, if you haven’t already read it, click here for the latest Buffett letter (published this weekend).

• The playing field: Graham Duncan, the co-founder of East Rock Capital, on the five levels of the investing “game.” Interesting framework.
• Volatility’s here to stay: Short interview with Stephen Diggle of Vulpes Investment Management.
• Alibaba’s “acquisition” of 33% of Ant Financial: Recently came across this blog, which covers Alibaba in some detail (see this post too).
• Private equity: overvalued and overrated?: Dan Rasmussen of Verdad Capital continues to demystify private equity as an asset class.
• The enlightenment of Steven Pinker: Peter Harrison reviews Pinker’s new book.