Thomas S. Gruca
University of Iowa
Financial economicsAdvertisingEmpirical researchRural areaBusinessEconometricsMarket shareHealth careActuarial scienceEconomicsMarketingMicroeconomicsFinancial marketNew product developmentWorkforceCompetition (economics)OutreachIndustrial organizationComputer scienceFamily medicineMedicine
79Publications
23H-index
2,311Citations
Publications 69
Newest
#1Tae-Hyung PyoH-Index: 2
#2JaeHwan KwonH-Index: 5
Last. Dhananjay NayakankuppamH-Index: 9
view all 4 authors...
Source
#1Kameron M. CarterH-Index: 5
Last. Thomas S. Gruca (UI: University of Iowa)H-Index: 2
view all 4 authors...
The purpose of this paper is to examine the relationship of immediate workspace satisfaction (IWS) and environmental workplace quality (EWQ) on perceived organizational support (POS), engagement and organizational citizenship behaviors (OCBs). In this paper, we draw on social exchange theory and environmental psychology to propose IWS and EWQ as drivers of employee OCBs.,A survey was conducted with 1,206 full-time employees. The EWQ measure was assessed with a randomly selected calibration sampl...
Source
#1Thomas S. GrucaH-Index: 23
#1Thomas S. GrucaH-Index: 2
Last. Thomas A. RietzH-Index: 21
view all 2 authors...
1 CitationsSource
#1Michael Cipriano (St. Ambrose University)H-Index: 5
#1Michael C Cipriano (St. Ambrose University)
view all 3 authors...
Business writers and academics have suggested keeping an investing diary to avoid hindsight bias. In the diary, investors justify their predictions of future events, e.g., “This stock will go up because…” Eliminating hindsight bias should improve future returns. However, psychological research on the “explanation effect” suggests that justifying one’s predictions in writing induces overconfidence and, by consequence, reduces current returns. We test these propositions in a set of prediction mark...
Source
#1Young Han Bae (PSU: Pennsylvania State University)H-Index: 5
#2Thomas S. Gruca (UI: University of Iowa)H-Index: 3
Last. Gary J. Russell (PSU: Pennsylvania State University)
view all 4 authors...
This study examines the relationship between market share and its rank for a comprehensive set of product categories and subcategories in the U.S consumer packaged goods industry. Based on prior re...
Source
#1Charles J. Paul (UIHC: University of Iowa Hospitals and Clinics)
#2Thomas S. Gruca (UI: University of Iowa)H-Index: 23
Last. Bradley A. Erickson (UIHC: University of Iowa Hospitals and Clinics)H-Index: 27
view all 6 authors...
ABSTRACT Objective To determine whether selection of treatment modality for urinary stone disease differs between primary and outreach healthcare centers, and if patient rurality predicts treatment modality. Methods We retrospectively evaluated ESWL and URS procedural data from the Iowa Office of Statewide Clinical Education Programs (OSCEP) and Iowa Hospital Association (IHA) databases from 2007-2014. Geographical data was used to analyze travel metrics and patient proximity to sites of stone t...
Source
#1Sean G. Young (University of Arkansas for Medical Sciences)H-Index: 8
#2Thomas S. Gruca (UI: University of Iowa)H-Index: 23
Last. Gregory C. Nelson (Roy J. and Lucille A. Carver College of Medicine)H-Index: 3
view all 3 authors...
OBJECTIVE: To assess the impact of nonphysician providers on measures of spatial access to primary care in Iowa, a state where physician assistants and advanced practice registered nurses are considered primary care providers. DATA SOURCES: 2017 Iowa Health Professions Inventory (Carver College of Medicine), and minor civil division (MCD) level population data for Iowa from the American Community Survey. STUDY DESIGN: We used a constrained optimization model to probabilistically allocate patient...
2 CitationsSource
#1Conrad M. Tobert (UIHC: University of Iowa Hospitals and Clinics)H-Index: 13
#2Kenneth G. Nepple (UI: University of Iowa)H-Index: 22
Last. Bradley A. Erickson (UIHC: University of Iowa Hospitals and Clinics)H-Index: 27
view all 8 authors...
ABSTRACT OBJECTIVE To identify factors associated with nonmuscle invasive bladder cancer (NMIBC) American Urological Association (AUA) guideline compliance in a rural state, to evaluate compliance rates over time, and to assess the impact of patient and provider rurality on delivery of NMIBC care. METHODS We identified 847 Iowans in Surveillance, Epidemiology, and End Results-Medicare from 1992 to 2009 with high-grade NMIBC who survived 2 years and were not treated with cystectomy or radiation d...
4 CitationsSource
#1Thomas S. Gruca (UI: University of Iowa)H-Index: 2
#1Thomas S. Gruca (UI: University of Iowa)H-Index: 3
Last. Sean G. Young (University of Arkansas for Medical Sciences)H-Index: 8
view all 5 authors...
Background Physician assistants are expected to have an important role in providing both primary and specialty care. Iowa has a large rural (and aging) population and faces challenges to provide equitable access to care. This study examined changes in the Iowa physician assistant workforce (1995–2015) focusing on practice setting (primary v. subspecialty care) and geographic location (rural/urban, Health Professional Shortage Area). Documenting their current locations and service in HPSAs for pr...
2 CitationsSource
#1Thomas S. Gruca (UI: University of Iowa)H-Index: 23
#1Thomas S. Gruca (UI: University of Iowa)H-Index: 2
Last. Gary E. Rosenthal (Wake Forest University)H-Index: 68
view all 5 authors...
While women are under-represented in research on cardiovascular disease (CVD), little is known about the attitudes of men and women with CVD regarding participation in clinical research studies/clinical trials. Patients with CVD (and/or risk factors) and patients with other chronic conditions from Iowa were recruited from a commercial panel. An on-line survey assessed willingness to participate (WTP) and other attitudes towards aspects of clinical research studies. Based on 504 respondents, ther...
2 CitationsSource