Portrait of the artist as an older man – this time with a pension | Money | The Guardian

"Galai, an economist spezialising in risk, worked out the basic return structure based on the Mei Moses Fine Art Index. Assuming an annual 15% increase in the art's value and an initial average value of $5,000 to $10,000 per piece, he estimates that payouts to artists could total $500,000 to $1.5m each."