Hitoshi Shigeoka's research field is applied microeconomics, especially health economics. These include analyses of how patients respond to the price of health care, how physicians react to the financial incentives, how the expansion of health insurance coverage affects utilization and supply of health care, how the repeal of federal prohibition affects infant mortality in the US, and how the introduction of face-mask mandates affect the case growth of COVID-19, and the introduction of vaccine mandates in vaccine uptake in Canada.

He applies state-of-art statistical techniques to many kinds of data including administrative data, survey data, and data from a laboratory experiment. He is also a Research Associate at the National Bureau of Economic Research. He obtained Ph.D. in Economics from Columbia University in 2012.

Hitoshi Shigeoka joined IZA as a Research Fellow in December 2021.