Browsing by Author "Karlsson, Jimmy"

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Det kommunala utjämningssystemet inom landstingen - Den vårdtunga gruppens effekt på nettokostnadsavvikelsen
(2017-09-25) Borin, Anna; Karlsson, Jimmy; University of Gothenburg/Department of Economics; Göteborgs universitet/Institutionen för nationalekonomi med statistik
Syftet med vår uppsats är att undersöka den förändring av det kommunala utjämningssystemet för landstingen som genomfördes 2014, när man slutade kompensera landstingen för en hög andel vårdtunga patienter. Studiens fokus är att undersöka effekten av den vårdtunga gruppen på nettokostnadsavvikelsen efter att de vårdtunga patienterna uteslöts ur utjämningen. Nettokostnadsavvikelsen definieras som avvikelsen mellan faktisk kostnad för hälso- och sjukvård och enligt utjämningssystemet förväntad kostnad. För att undersöka detta har vi använt oss av OLS-regressioner, där vi kontrollerar för regionsspecifika effekter. Vårt regressionsutfall ger inga signifikanta resultat, men indikerar att förändringen kan ha gjort det svårare för landstingen att inte överskrida förväntad kostnad för hälso-och sjukvården.
Temperature and Exports– Evidence from the United States
(2019-07-02) Karlsson, Jimmy; University of Gothenburg/Graduate School; Göteborgs universitet/Graduate School
IPCC estimates anthropogenic global warming to have reached 1◦C com-pared to pre-industrial levels. This study evaluates the relationship of tem-perature ﬂuctuations and exports, using high-resolution panel data of daily weather and monthly exports in U.S. states. I ﬁnd signiﬁcantly negative eﬀects of both low and high temperatures, where one additional day with temperatures below -10◦C and above 25◦C reduces U.S. exports by 0.22%and 0.24%, respectively. The optimal daily average temperature for exports is estimated to approximately 10◦C. These new ﬁndings contradict previous research on temperature and exports, which has not found signiﬁcant eﬀects in rich countries. Under a ’business as usual’ scenario with a continued rise in CO2 emissions, I project an average reduction in U.S. exports by 12.7%at the end of this century. My result implies stronger economic incentives for rich countries similar to the United States to invest in climate change mitigation, and to plan for future adaptation against a warming climate.
The Economic Impacts of Carbon Taxation and Climate Change
(2025-09-02) Karlsson, Jimmy
Climate change constitutes one of the biggest societal challenges today, and carbon taxation is one of the most important policies to curb carbon emissions. This dissertation investigates the economic impacts of carbon taxation, and the economic damages caused by extreme weather. Analyzing a reform in Sweden, the research shows that carbon taxation can be an effective tool to reduce emissions in the manufacturing sector. It also shows that it can have negative effects on firm performance, by decreasing revenue and employment. The larger negative effect on firms’ demand for workers without a high-school degree suggests that carbon taxation increases labor market inequality. However, complementary analyses show no signs of increasing unemployment rates in local labor markets that are more exposed to the reform. Labor markets therefore seem able to mitigate the negative effects on labor demand induced by carbon taxation. These results contribute to the understanding of the distributional costs of the green transition.