The Mystery of Declining Productivity

John Cassidy of the New Yorker has a good blog post/short article about the mystery and debate about the decline in productivity and what it might mean for the real benefits of the Internet on economic growth.  However, that does not mean that the the Internet has not brought real tangible benefits.  The Free Exchange column at the Economist describes the way economists have been trying to calculate the real value in consumer surplus created by the Internet.