Skip to main content

Sang Ok Choi

Korea University · Social Sciences

About the Lab

Professor Sang Ok Choi's research lab focuses on the intersection of technology adoption, network dynamics, and public sector innovation, with an emphasis on how digital transformation and institutional frameworks influence socio-economic development and policy effectiveness. The lab investigates network structures in emergency management and public administration, exploring how collective perception and leadership centrality shape network performance. It also examines the role of innovation diffusion, R&D investment, and technological adaptation—particularly in the context of Korea’s fourth industrial revolution—on business sustainability and economic growth. Additionally, the lab engages in materials science research, particularly on perovskite catalysts for environmental applications, combining experimental and theoretical methods to understand oxygen exchange mechanisms.

network dynamicstechnology adoptionpublic administrationperovskite catalystsinnovation diffusion

Research Overview

Papers
133
Total Citations
2,281
Papers (5y)
29
Primary Field
Social Sciences

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
29total
2022
2023
2024
2025
2026
Citations per year (5y)
18total
20222023202420252026

Selected Papers

15
1
Article|312 citations·2004
Three Traditions of Network Research: What the Public Management Research Agenda Can Learn from Other Research Communities
Frances Berry, Ralph S. Brower, Sang Ok Choi, Wendy Xinfang Goa, HeeSoun Jang, Myungjung Kwon, Jessica Word
SJR Q1Public Administration Review

This article identifies and describes the development of three parallel streams of literature about network theory and research: social network analysis, policy change and political science networks, and public management networks. Noting that these traditions have sometimes been inattentive to each other's work, the authors illustrate the similarities and differences in the underlying theoretical assumptions, types of research questions addressed, and research methods typically employed by the

Public AdministrationSocial Sciences
2
Article|129 citations·2006
When Practice Matters More Than Government Plans
Sang Ok Choi, Ralph S. Brower
SJR Q1Administration & Society

This study examines the disparity between formal plans and actual networks in practice for emergency services in a local government setting. This study found that the accuracy of participants'collective perception of the network has a strong positive relationship with the centrality of the lead agency within each emergency support function. In addition, the centrality of influence within and collective accuracy about the network may be key indicators for creating network effectiveness. Finally,

Public AdministrationSocial Sciences
3
Article|112 citations·2019
Digital Innovation Adoption and Its Economic Impact Focused on Path Analysis at National Level
HyunJee Park, Sang Ok Choi
SJR Q1Journal of Open Innovation Technology Market and ComplexityOA

Purpose: The advancement of technologies and their adoption affects the socio-economic growth of nations. This research is focused on how this innovation adoption path is linked to economic growth of nations since the previous IT revolution has been combined with existing industries and adding values in terms of applying intelligence through adopting digital technologies. Approach/Design/Methodology: There are two different approaches—process approach and factor approach—in innovatio

Management Science and Operations ResearchDecision Sciences
4
Article|96 citations·2008
County Limits
Sang Ok Choi, Sang-Seok Bae, Sung‐Wook Kwon, Richard C. Feiock
SJR Q1The American Review of Public Administration

This study extends Peterson’s city limits perspective to counties to empirically examine how economic, political, institutional, and demographic factors influence overall county spending and spending priorities across three core policy arenas. Pooled cross-sectional time-series analysis of Florida counties reveals that although population density and economic conditions influence spending, politics and institutions matter. Political ideology as indicated by presidential and gubernatorial Democra

Political Science and International RelationsSocial Sciences
5
Article|84 citations·2013
Experimental and Computational Investigation of Effect of Sr on NO Oxidation and Oxygen Exchange for La1–xSrxCoO3Perovskite Catalysts
Sang Ok Choi, Michael Penninger, Chang Hwan Kim, William F. Schneider, Levi T. Thompson
SJR Q1ACS Catalysis

NO oxidation rates over La 1– x Sr x CoO 3 ( x = 0–0.3) perovskite catalysts are reported as a function of Sr doping in the absence and presence of NO 2 in the feed. Sr substitution is found to increase the rate of oxidation and to diminish the inhibitory influence of NO 2 . Temperature programmed desorption and isotopic exchange (TPIE) experiments were used to identify surface species and oxygen exchange processes expected to correlate with NO oxidation activity. Oxygen exchange in the LaCoO 3

Materials ChemistryMaterials Science
6
Article|73 citations·2009
Performance of La1−xCexFe0.7Ni0.3O3 perovskite catalysts for methane steam reforming
Sang Ok Choi, Sang Heup Moon
SJR Q1Catalysis Today
CatalysisChemical Engineering
7
Article|69 citations·2019
The Effect of Innovation Capability on Business Performance: A Focus on IT and Business Service Companies
Seung Hoo Jin, Sang Ok Choi
SJR Q1SustainabilityOA

With the introduction of a wide variety of new technologies during the fourth industrial revolution, companies in Korea have attempted to enhance their innovation activities, which include investment in new technology adoption, technical and non-technical innovation factors, and Research & Development (R&D) activity, to ensure the development and growth of their business performance and sustainability. In particular, IT and business services, two important industries in Korea, have been

Economics and EconometricsEconomics, Econometrics and Finance
8
Article|56 citations·2007
Power and Cognitive Accuracy in Local Emergency Management Networks
Sang Ok Choi, Bok‐Tae Kim
SJR Q1Public Administration Review

Using network power bases and cognitive accuracy concepts, this study examines two local emergency management network changes. The authors review five power bases—structural‐based, resource‐based, actor‐based, cognitive‐based, and political‐based power—to explore the perceived power of network actors. Three research propositions are proposed with respect to the relationship between the network power bases and the cognitive accuracy of network participants. The authors find that political‐based p

Sociology and Political ScienceSocial Sciences
9
Article|50 citations·2018
A Study on the Factors Affecting Decrease in the Government Corruption and Mediating Effects of the Development of ICT and E-Government—A Cross-Country Analysis
Kangwon Lee, Sang Ok Choi, Jinha Kim, Mijin Jung
SJR Q1Journal of Open Innovation Technology Market and ComplexityOA

Purpose: As the development of high technology, information and communications technology (ICT) and e-government has pursued improving efficiency, productivity, democracy, responsiveness and transparency in government, the demand for efficient government administration systems and government transparency has increased. Thus, this study aims to derive factors contributing to decreases in corruption based on a literature review, and to examine the relationship between e-government and government c

Sociology and Political ScienceSocial Sciences
10
Article|48 citations·2008
Emergency Management: Implications from a Strategic Management Perspective
Sang Ok Choi
SJR Q3Journal of Homeland Security and Emergency Management

This study argues the necessity for and the benefits of a strategic management approach in current emergency management systems. Strategic management is characterized as a long-term process for developing a continuing commitment to the mission and vision of an organization, nurturing a culture that identifies with and supports the mission and vision, and maintaining a clear focus on the organization's strategic agenda throughout all its decision processes and activities. Recent emergency managem

Sociology and Political ScienceSocial Sciences
11
Article|46 citations·2018
The Effects of Job Mismatch on Pay, Job Satisfaction, and Performance
Si-Jeoung Kim, Sang Ok Choi
SJR Q1Journal of Open Innovation Technology Market and ComplexityOA

The purpose of this study is to analyze the effects of job mismatch on pay, job satisfaction, and performance of doctoral level researchers, based on the job-environment fit theory. The study analyzed 2273 sample data used in the survey, based on the &lsquo

Organizational Behavior and Human Resource ManagementBusiness, Management and Accounting
12
Article|42 citations·2012
Voter Intention to Use E-Voting Technologies: Security, Technology Acceptance, Election Type, and Political Ideology
Sang Ok Choi, Byung Cho Kim
SJR Q1Journal of Information Technology & Politics

ABSTRACT This study integrates characteristics of e-voting technologies, political contexts, and behaviors with the technology acceptance model (TAM) to empirically examine how security principles, election types, and political ideology influence overall user intention to use an e-voting system. Structural equation analysis and Ordinary Least Squares (OLS) regression used on estimates of 228 surveys reveal that perceived usefulness, perceived ease of use, accuracy, and confidentiality have direc

Artificial IntelligenceComputer Science
13
Article|33 citations·2020
The Intensity of Organizational Change and the Perception of Organizational Innovativeness; with Discussion on Open Innovation
Jaeseong Kim, Sang Ok Choi
SJR Q1Journal of Open Innovation Technology Market and ComplexityOA

Each individual member of an organization must recognize and lead innovation, which can be affected by human resource development (HRD) investments and organizational changes. In this study, we aimed to verify how HRD investment at the individual level relates to employee perceptions of organizational innovativeness and to examine how the intensity of organizational change, a situational factor at the organizational level, affects the relationship between HRD investment and employee perceptions

Strategy and ManagementBusiness, Management and Accounting
14
Article|32 citations·2012
Collaborative Partnerships and Crime in Disorganized Communities
Cheon Geun Choi, Sang Ok Choi
SJR Q1Public Administration Review

Collaborative partnerships can be an effective strategy for crime prevention, especially in disorganized communities. Using ordinary least squares regression with 414 American cities, this article finds that police departments with many collaborative partnerships are able to promote informal social control within their communities and capitalize on the resources available to them with the help of other groups. This contention is supported by the effects of collaborative partnerships on crime rat

Sociology and Political ScienceSocial Sciences
15
Article|31 citations·2020
The Effect of a Financial Support on Firm Innovation Collaboration and Output: Does Policy Work on the Diverse Nature of Firm Innovation?
Kiman Kim, Sang Ok Choi, Sooyeon Lee
Journal of the Knowledge Economy
Economics and EconometricsEconomics, Econometrics and Finance

Research Areas

Sociology and Political SciencePublic AdministrationEconomics and EconometricsInformation SystemsPublic Health, Environmental and Occupational HealthIndustrial and Manufacturing Engineering

Dive deeper into Sang Ok Choi's research on Nubint

Open this lab's papers in the app to read with AI, summarize, and cite in your writing.