@TechReport{iza:izadps:dp4645,
            	author={Oswald, Andrew J. and Proto, Eugenio and Sgroi, Daniel},
            	title={Happiness and Productivity},
            	year={2009},
	month={Dec},
            	institution={Institute of Labor Economics (IZA)},
            	address={Bonn},
            	type={IZA Discussion Paper},
            	number={4645},
            	url={https://www.iza.org/index.php/publications/dp4645},
	abstract={The paper provides evidence that happiness raises productivity. In Experiment 1, a randomized trial is designed. Some subjects have their happiness levels increased, while those in a control group do not. Treated subjects have 12% greater productivity in a paid piece-rate Niederle-Vesterlund task. They alter output but not the per-piece quality of their work. To check the robustness and lasting nature of this kind of effect, a complementary Experiment 2 is designed. In this, major real-world unhappiness shocks – bereavement and family illness – are studied. The findings from (real-life) Experiment 2 match those from (random-assignment) Experiment 1.},
	keywords={labor productivity;emotions;well-being;happiness;positive affect;experimental economics},
            }