Business Commons^™

Hospital-Physician Integration And Physician Collaboration: Implications For Care Efficiency And Outcomes, Hui Jia

Doctoral Dissertations

This thesis focuses on healthcare operations management and consists of two essays that investigate empirically how the relationship between physicians and hospitals and the relationship between peer physicians, respectively, affect clinical care outcomes and care efficiency.

In the first essay, I study hospital-physician integration as a type of organization-service provider relationship. Many prior studies have provided insights into the benefits of a tight collaboration between hospitals and physicians. However, neutral and even negative effects of this relationship on healthcare performance have been observed and discussed in the literature. This mixed evidence points to a need for further study to elucidate …

Sparse Model Selection Using Information Complexity, Yaojin Sun

Doctoral Dissertations

This dissertation studies and uses the application of information complexity to statistical model selection through three different projects. Specifically, we design statistical models that incorporate sparsity features to make the models more explanatory and computationally efficient.

In the first project, we propose a Sparse Bridge Regression model for variable selection when the number of variables is much greater than the number of observations if model misspecification occurs. The model is demonstrated to have excellent explanatory power in high-dimensional data analysis through numerical simulations and real-world data analysis.

The second project proposes a novel hybrid modeling method that utilizes a mixture …

Effects Of Economic Development Status And Eco-Product On Consumption Values: From The Perspective Of Us Consumers, Mostafa Zaman

Doctoral Dissertations

Consumers select a product based on numerous product characteristics. Numerous studies conducted earlier revealed that consumers in developing countries preferred products made in western or developed countries because their product quality is better than the quality of local products (Lee & Nguyen, 2017; Dao & Heidt, 2018; Rodrigo et al., 2019). Moreover, consumers are increasingly concerned about manufacturers’ environmental issues. Although ethical consumers believe that eco-products could save the environment, some consumers are not concerned about the eco-products and thus select products based on other product attributes (Joshi & Rahman, 2015). Hence, it becomes very challenging for retailers to select …