@TechReport{iza:izadps:dp9939,
            	author={Riddell, Chris and Riddell, W. Craig},
            	title={When Can Experimental Evidence Mislead? A Re-Assessment of Canada's Self Sufficiency Project},
            	year={2016},
	month={May},
            	institution={Institute of Labor Economics (IZA)},
            	address={Bonn},
            	type={IZA Discussion Paper},
            	number={9939},
            	url={https://www.iza.org/publications/dp9939},
	abstract={The Self-Sufficiency Project was a well-known welfare-to-work experiment that provided a generous but time-limited financial incentive to leave welfare and enter the workforce. Experimental evidence showed large short-term impacts but no lasting effects. We argue that these conclusions need to be re-assessed. Policy changes implemented during the SSP implied the behavior of the control group did not provide an appropriate counterfactual. We estimate the impacts the financial incentive would have had in a stable policy environment. This re-assessment leads to significant changes in the lessons previously reached. Our study demonstrates that experimental findings need to be interpreted with care.},
	keywords={welfare-to-work policies;social experiments;Self-Sufficiency Project},
            }