- December 2011
- August 31, 2011
- March 16, 2011
- February 11, 2011
- January 2011
- October 5, 2010
- August 31, 2010
- August 20, 2010
- August 2010
- July 22, 2010
- June 17, 2010
- June 2010
- June 3, 2010
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- February 3, 2010
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- December 2009
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- November 12, 2009
- November 9, 2009
- October 26, 2009
- October 2009
- September 2, 2009
- September 1, 2009
- August 2009
- Summer 2009
- June 1, 2009
- May 2009
- March 28, 2009Retrospective Estimation of Causal Effects Through Time
- February 25, 2009
- December 1, 2008
- November 2008
- November 2008
- November 3, 2008
- July 2008
- Summer 2008
- June 2008
- May 2008
- March 2008
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- December 3, 2007
- July 6, 2007
- April 2007
- February 2007
- January 24, 2007
- December 22, 2006
- November 2006
- November 1, 2006
- October 31, 2006
- October 2006
- June 21, 2006Adopting a Ramp Charge to Improve Performance of the Ontario Market
- Winter 2006
- 2004
- March 1998