Write a review of the article by Todd Keister and James McAndrews, "Why Are Banks Holding So Many Excess Reserves?" Federal Reserve Bank of New York Current Issues in Economics and Finance 15, no. 8 (December 2009), available at http://www.newyorkfed.org/research/current_issues/ci15-8.html

In your own words, explain the key points that the author was trying to communicate. Your review should be at least one page