Kornstad, Tom; Skjerpen, Terje; Stambøl, Lasse Sigbjørn - 2021
panel data analysis for four educational groups using seemingly unrelated regression (SUR) models, acknowledging that the … effects of the incentive variables may vary across educational groups. Generally, we find weak responses to the incentive … variables for the eight response variables, but they differ somewhat across the educational groups. The group comprised of those …