Updated March 25, 2001 <p>A revised version of this paper appears as "Measuring the Effect of the EITC on Marriage Penalties and Bonuses." National Tax Journal 53(4) (part 2): 1107-1134. For more information see www.ntanet.org. <p>In 2000, the EITC will increase net marriage penalties by $3.6 billion....</p></p>