@TechReport{iza:izadps:dp5540,
            	author={Spector, Susanne Ek and Holmlund, Bertil},
            	title={Part-Time Unemployment and Optimal Unemployment Insurance},
            	year={2011},
	month={Feb},
            	institution={Institute of Labor Economics (IZA)},
            	address={Bonn},
            	type={IZA Discussion Paper},
            	number={5540},
            	url={https://www.iza.org/index.php/publications/dp5540},
	abstract={A significant fraction of the labor force consists of employed workers who are part-time unemployed (underemployed) in the sense that they are unable to work as much as they prefer. This paper develops a search and matching model to study the design of optimal unemployment insurance in an economy with unemployment as well as part-time unemployment. Part-time unemployment provides income insurance and serves as a stepping stone to full-time jobs. Unemployment benefits for part-timers increase the outflow from unemployment to part-time work but reduce the outflow from part-time work to full-time employment. We examine the optimal structure of benefits for unemployed and underemployed workers. The results indicate non-negligible welfare gains associated with time limits for unemployment benefits as well as for part-time benefits. The welfare gains from optimal UI are larger when wages are fixed than when they are flexible.},
	keywords={part-time unemployment;unemployment insurance;job search},
            }