Confessions of an Internet Monopolist: Demand Estimation for a Versioned Information Good
Henry Chappell, Paulo Guimarães, Orgul Demet Ozturk
Managerial and Decision Economics, vol. 32, 2011, p. 1-15.

Politics and Unemployment in Industrialized Democracies
Linda Veiga, Henry Chappell
Public Choice, vol. 110, 2002, p. 261-282.

Output-Inflation Tradeoffs in 34 Countries
John Addison, Henry Chappell, Alberto Castro
Journal of Economics And Business, vol. 38, 1986, p. 353-360.