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U sing aggregate product search data from Amazon.com, we jointly estimate consumer information search and online demand for consumer durable goods. To estimate the demand and search primitives, we introduce an optimal sequential search process into a model of choice and treat the observed market-level product search data as aggregations of individual-level(More)
We describe online consumers' search behavior for differentiated durable goods using a data set that captures a detailed level of consumer search and attribute information for digital cameras. Consumers search extensively, engaging in 14 searches on average prior to purchase. Individual level search is confined to a small part of the attribute space. Early(More)
The authors propose a new method to visualize browsing behavior in so-called product search maps. Manufacturers can use these maps to understand how consumers search for competing products before choice, including how information acquisition and product search are organized along brands, product attributes, and price-related search strategies. The product(More)
PURPOSE The aim of this study was conducted to investigate the mean nRBC count in very low births weight infants (VLBWIs) and to determine the usefulness of the nRBC as an independent prognostic factors of perinatal complications in VLBWIs. METHODS This study was conducted on 112 VLBWIs who were hospitalized in the neonatal intensive care unit (NICU) of(More)
We report a case of serous retinal detachment following combined photodynamic therapy (PDT) and intravitreal bevacizumab injection in subfoveal choroidal neovascularization (CNV). A 53-year-old woman was diagnosed with subfoveal CNV secondary to age-related macular degeneration (AMD) and treated with combined PDT and intravitreal bevacizumab injection. One(More)
  • Jun B. Kim, Bart J. Bronnenbergy, Paulo Albuquerquez
  • 2008
Using aggregate, product search data from Amazon.com, we jointly estimate consumer information search and online demand for durable goods. To estimate the demand and search primitives, we introduce an optimal sequential search process into a model of choice and treat the observed market-level product search data as aggregations of individual-level optimal(More)
PURPOSE We report a case of branch retinal artery occlusion (BRAO) in a healthy pregnant woman. METHODS A 29-year-old pregnant woman presented with decreased vision in her left eye. She had a pale retina with macular edema consistent with BRAO. An extensive workup was performed to determine an etiologic factor. All test results were within normal limits(More)
The 22q11 region has been implicated in chromosomal rearrangements that result in altered gene dosage, leading to three different congenital malformation syndromes: DiGeorge syndrome, cat-eye syndrome (CES), and der(22) syndrome. Although DiGeorge syndrome is a common genomic disorder on 22q11, CES is quite rare, and there has been no report of Korean CES(More)
To my beloved parents, husband Kaibo and son Jiaye. iv ACKNOWLEDGEMENTS This thesis represents far more than what appears in these pages and my own effort to produce them. It represents years of guidance and support from faculty, peers, family, and friends. I am especially grateful to chair of my doctoral committee, Chris Forman, whose exceptional support(More)