Person:
Ketokivi, Mikko

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Mikko
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Ketokivi
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IE University
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IE Business School
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Operations and Business Analytics
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2013 - 20173
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End date: 2019 × Start date: 2013 ×

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Now showing 1 - 3 of 3
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    Depression and smoking: A 5-year prospective study of patients with major depressive disorder
    (2013) Holma, Irina; Holma, Mikael; Melartin, Tarja; Isometsä, Erkki; Ketokivi, Mikko; https://ror.org/02jjdwm75
    Background Major depressive disorder (MDD) and smoking are major public health problems and epidemiologically strongly associated. However,the relationship between smoking and depression and whether this is influenced by common confounding factors remain unclear,in part due to limited longitudinal data on covariation. Methods In the Vantaa Depression Study,psychiatric out- and inpatients with DSM-IV MDD and aged 20-59 years at were followed from baseline to 6 months,18 months,and 5 years. We investigated course of depression,smoking,and comorbid alcohol-use disorders among the 214 patients (79.6% of 269) participating at least three time points; differences between smoking versus nonsmoking patients,and covariation of MDD,smoking,and alcohol-use disorders. Results Overall,31.3% of the patients smoked regularly,41.1% intermittently,and 27.6% never. Smokers were younger,had more alcohol-use disorders and Cluster B and C personality disorder symptoms,a higher frequency of lifetime suicide attempts,higher neuroticism,smaller social networks,and lower perceived social support than never smokers. Smoking and depression had limited longitudinal covariation. Depression,smoking,and alcohol-use disorders all exhibited strong autoregressive tendencies. Conclusions Among adult psychiatric MDD patients,smoking is strongly associated with substance-use and personality disorders,which may confound research on the impact of smoking. Rather than depression or smoking covarying or predicting each other,depression,smoking,and alcohol-use disorders each have strong autoregressive tendencies. These findings are more consistent with common factors causing their association than either of the conditions strongly predisposing to the other. © 2013 Wiley Periodicals,Inc.
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    Why locate manufacturing in a high-cost country? A case study of 35 production location decisions
    (Elsevier B.V., 2017) Turkulainen, Virpi; Seppälä, Timo; Rouvinen, Petri; Ali Yrkkö, Jyrki; Ketokivi, Mikko; Academy of Finland; Kungliga Tekniska Högskolan; https://ror.org/02jjdwm75
    In this paper,we examine in detail 35 final assembly location decisions to gain understanding of the manufacturing location decision from strategy and economic policy perspectives. We are particularly interested in the decision to locate final assembly specifically in a high-cost (high GDP per capita) environment. In contrast with the earlier literature,we focus not just on manufacturing activities themselves,but also the key linkages between production,market,supply chain,and product development. These linkages are examined using three key concepts from theories of organization design: formalization,specificity,and coupling. Using these concepts,an analysis of the micro-structure of each case reveals important commonalities that inform our understanding of location decisions. We conclude by discussing the policy implications of our findings. © 2017 Elsevier B.V.
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    Improving home care: Knowledge creation through engagement and design
    (Elsevier B.V., 2017) Groop, Johaan; Gupta, Mahesh; Holmström, Jan; Ketokivi, Mikko; https://ror.org/02jjdwm75
    In this paper,we apply a design science approach to help a Northern European city improve the efficiency of its home care delivery system. Our proposed solution emerges as a synthesis of applying Goldratt's Theory of Constraints and the principles of variable-demand inventory replenishment. The improved system exhibits both more level resource utilization and higher productivity due to more efficient capacity utilization. In addition to improving system efficiency,we gain insights into how authentic operations management problems can be addressed through design research. A crucial aspect of empirically-rooted practical problems is that they always involve multiple stakeholders with only partially overlapping preferences. Consequently,one must not assume or ascribe an a priori system objective,instead,it must arise from explicit empirical analysis of the relevant stakeholders. Another characteristic of authentic problems is that they are always embedded in an institutional context that sets significant boundary conditions to the feasibility of solutions. These boundary conditions are an important reminder of the complexity of empirically-rooted managerial problems. © 2017