Stockholm School of Economics

About: Stockholm School of Economics is a education organization based out in Stockholm, Sweden. It is known for research contribution in the topics: Population & Cost effectiveness. The organization has 1186 authors who have published 4891 publications receiving 285543 citations. The organization is also known as: Stockholm Business School & Handelshögskolan i Stockholm.

At what coronary risk level is it cost-effective to initiate cholesterol lowering drug treatment in primary prevention?

Abstract: Background The entire risk factor profile should be taken into account when considering initiating cholesterol lowering drug treatment. Recent treatment guidelines are therefore based on the absolute risk of coronary heart disease. We estimated at what coronary risk it is cost-effective to initiate cholesterol lowering drug treatment in primary prevention for men and women of different ages in Sweden. Methods The cost-effectiveness was estimated as the incremental cost per quality-adjusted life-year (QALY) gained of cholesterol lowering drug treatment. Treatment was assumed to lower the risk of coronary heart disease by 31%. The analysis was carried out from a societal perspective including both direct and indirect costs of the intervention and morbidity, and the full future costs of decreased mortality. The coronary risk, in a Markov model of coronary heart disease, was raised until the cost per QALY gained corresponded to a specific threshold value per QALY gained. Three different threshold values were used: $40000, $60000 and $100000 per QALY gained. Results The risk cut-off value for when treatment is cost-effective varied with age and gender. If society is willing to pay $60000 to gain a QALY it was cost-effective to initiate treatment if the 5-year-risk of coronary heart disease exceeded 2·4% for 35-year-old men, 4·6% for 50-year-old men, and 10·4% for 70-year-old men. The corresponding risk cut-off values for women were 2·0%, 3·5% and 9·1%. Conclusions The results can serve as a basis for treatment guidelines based on cost-effectiveness.

Intra-urban landscapes of priority : the Soviet legacy

Abstract: Based on the urban experience of the Soviet Union, this article explores the value of the so-called priority approach for understanding the mechanisms that contributed to the creation of the spatial structure of the Soviet/socialist city. The changes in priority status that the various urban functions were subject to are highlighted. It is then proposed that these variations were instrumental in the formation of the internal functioning and social differentiation of the Soviet/socialist city and, to the extent that the pre-1991 urban fabric persists, of its post-Soviet successor. Finally, the authors propose a new model of the development of the Soviet/socialist city, fusing the priority approach with an extensive survey of previous scholarly work within the field.

Models in action: how management models are interpreted in new product development

Abstract: This paper studies the use of product development management models. Through an interpretive research approach based on in-depth interviews with 22 middle managers in two product development organizations, five ways of conceiving projects, project management and the role of models are identified – administrative, organizing, sense giving, team building and engineering – all representing different perspectives on – and ways of using models. The findings question essentialist views of models, common in the literature, as either normative guides for action or symbolic tools decoupled from action. Instead, the study indicates a large variety in the use of models mediated by the user's conception of the situation and the model. The study highlights the communicative role of models as boundary objects, enabling coordination of and communication about different conceptions of the development task. Rather than contributing to behavioral standardization (an implicit assumption that underlies most formal models), this study suggests that models support cognitive standardization by providing a common set of concepts and a framework that may be drawn upon in making sense of complex product development projects.

Comparison of congestion management techniques: Nodal, zonal and discriminatory pricing

Abstract: This thesis consists of four essays examining the functioning of electricity markets. The first article builds on a game-theoretical model, the three other articles discuss empirically the link between information and price formation process.Comparison of congestion management techniques: Nodal, zonal and discriminatory pricing, compares different market designs used to handle congestion in electricity transmission networks.Market-specific news and its impact on forward premia on electricity markets is an empirical analysis of the impact messages informing about sudden events affecting the power market have on price differences between the day-ahead and the intra-day Nordic electricity market.Strategic withholding through production failures, studies a previously unexamined way through which electricity producers can withhold capacity in order to increase prices on the Nordic electricity market and verifies whether the decision to stop production and inform about a sudden failure is based on economic incentives or rather is a result of a technical problem.Private and public information on the Nordic intra-day electricity market is an investigation of how traders on the Nordic intra-day electricity market react to public news about sudden failures on the power grid and whether they use private information about forthcoming outages in trading.