An easy, indeed costless, way to support Marginal Revolution is to buy goods from Amazon after first clicking on a link from our page. The link at the bottom of the right sidebar will take you to the Amazon homepage. Book links will take you to a particular book but any goods you buy in a session orginating here will benefit MR. And men, don’t forget Valentines is coming soon – take a look at this beautiful engagement ring! We shall not be retiring on our earnings but so far we are covering our hosting costs. Thanks!