Search Results - "Smith, Tony E"
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Common power laws for cities and spatial fractal structures
Published in Proceedings of the National Academy of Sciences - PNAS (24-03-2020)“…City-size distributions are known to be well approximated by power laws across a wide range of countries. But such distributions are also meaningful at other…”
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On the spatial scale of industrial agglomerations
Published in Journal of urban economics (01-09-2015)“…Standard approaches to studying industrial agglomeration have been in terms of scalar measures of agglomeration within each industry. But such measures often…”
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Geographic distribution of insufficient sleep across the United States: a county-level hotspot analysis
Published in Sleep health (01-09-2015)“…Abstract Introduction Insufficient sleep is associated with cardiometabolic risk and neurocognitive impairment. Determinants of insufficient sleep include many…”
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A Divergence Statistic for Industrial Localization
Published in The review of economics and statistics (01-11-2005)“…We propose a statistical index of industrial localization based on the Kullback-Leibler divergence. This index is particularly well suited to cases where…”
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THE NUMBER-AVERAGE SIZE RULE: A NEW EMPIRICAL RELATIONSHIP BETWEEN INDUSTRIAL LOCATION AND CITY SIZE
Published in Journal of regional science (01-02-2008)“…ABSTRACT The spatial intensities of both industries and population are highly uneven across space. Moreover, these intensities differ not only across…”
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Increased alcohol use after Hurricane Ike: The roles of perceived social cohesion and social control
Published in Social science & medicine (1982) (01-10-2017)“…Hurricane Ike, the third costliest hurricane in US history, made landfall in the Galveston Bay Area in September, 2008. Existing literature postulates that…”
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The Impact of Hospital Closures and Hospital and Population Characteristics on Increasing Emergency Department Volume: A Geographic Analysis
Published in Population health management (01-12-2015)“…Emergency visits are rising nationally, whereas the number of emergency departments is shrinking. However, volume has not increased uniformly at all emergency…”
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Time-varying accessibility to senior centers by public transit in Philadelphia
Published in Transportation research. Part A, Policy and practice (01-09-2021)“…•This paper examines the time-varying accessibility to senior centers by public transit in Philadelphia using the GTFS data.•Accessibility to senior centers…”
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The agglomeration of American R&D labs
Published in Journal of urban economics (01-09-2017)“…We employ a unique data set to examine the spatial clustering of about 1700 private R&D labs in California and in the U.S. Northeast Corridor. Using these…”
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Spatial mismatch, search effort, and urban spatial structure
Published in Journal of urban economics (01-07-2003)“…The aim of this paper is to provide a new mechanism for the spatial mismatch hypothesis. Spatial mismatch can here be the result of optimizing behavior on the…”
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11
Localized knowledge spillovers: Evidence from the spatial clustering of R&D labs and patent citations
Published in Regional science and urban economics (01-03-2020)“…Buzard et al. (2017) show that American R&D labs are highly spatially concentrated even within a given metropolitan area. We argue that the geography of their…”
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12
The stress-buffering effects of received social support on posttraumatic stress disorder among Hurricane Ike survivors
Published in Traumatology (Tallahassee, Fla.) (05-09-2024)“…Hurricane Ike made landfall in the Galveston Bay Area in 2008, destroying parts of the built and natural environment, and leaving survivors with a high…”
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13
Estimation Bias in Spatial Models with Strongly Connected Weight Matrices
Published in Geographical analysis (01-07-2009)“…This article shows that, for both spatial lag and spatial error models with strongly connected weight matrices, maximum likelihood estimates of the spatial…”
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Geospatial and Socioeconomic Factors Interact to Predict Management and Outcomes in Cleft Lip and Palate Surgery: A Single Institution Study of 740 Patients
Published in The Cleft palate-craniofacial journal (01-06-2024)“…Objective Determine interactions between geospatial and socioeconomic factors influencing cleft lip and/or cleft palate (CL/P) management and outcomes. Design…”
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15
Discrete Choice Model of Food Store Trips Using National Household Food Acquisition and Purchase Survey (FoodAPS)
Published in International journal of environmental research and public health (27-09-2017)“…Where households across income levels shop for food is of central concern within a growing body of research focused on where people live relative to where they…”
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A Variational Inequality Formulation of the Dynamic Network User Equilibrium Problem
Published in Operations research (01-01-1993)“…In the present paper we are concerned with developing more realistic dynamic models of route choice and departure time decisions of transportation network…”
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A probabilistic modeling approach to the detection of industrial agglomerations
Published in Journal of economic geography (01-05-2014)“…Dating from the seminal work of Ellison and Glaeser in 1997, a wealth of evidence for the ubiquity of industrial agglomerations has been published. However,…”
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Improved retransplant outcomes: early evidence of the share35 impact
Published in HPB (Oxford, England) (01-07-2018)“…Share 35 prioritizes offers of deceased donor livers to regional candidates with Model for End-Stage Liver Disease (MELD) ≥35 over local candidates with lower…”
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Modeling patient flows using a queuing network with blocking
Published in Health care management science (01-02-2005)“…The downsizing and closing of state mental health institutions in Philadelphia in the 1990's led to the development of a continuum care network of…”
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A spatio-temporal model of housing prices based on individual sales transactions over time
Published in Journal of geographical systems (01-12-2009)“…A spatio-temporal model of housing price trends is developed that focuses on individual housing sales over time. The model allows for both the spatio-temporal…”
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