Yu Sang Chang

Gachon University - College of Business and Economics

Korea

SCHOLARLY PAPERS

62

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SSRN CITATIONS
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Top 15,484

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54

CROSSREF CITATIONS

40

Scholarly Papers (62)

1.

Population Size vs. Number of Crime - Is the Relationship Super-Linear?

International Journal of Information and Decision Science(2018), Vol. 9, No. 1, pp. 26-39
Number of pages: 24 Posted: 03 Aug 2013 Last Revised: 08 Mar 2024
Yu Sang Chang, SungSup Choi, Jinsoo Lee and Won Chang Jin
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics, KDI School of Public Policy and Management and The Gallup Organization
Downloads 1,253 (31,206)
Citation 1

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Number of crime counts, the size of city, super-linear relationship, time-invariant distribution, city ecosystem

2.

Scaling Relationship between Traffic Congestion versus Population Size of 164 Global Cities

Gachon Center of Convergence Research Working Paper Series 2018-08
Number of pages: 27 Posted: 15 Aug 2018 Last Revised: 02 Nov 2018
Yu Sang Chang, NeiHei Park, Yoo-Taek Lee and Yoonji Lee
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics, Endicott College of International Studies, Woosong University and Boston University - Frederick S. Pardee School of Global Studies
Downloads 550 (94,725)

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Urban congestion penalty, Urban congestion advantage, Tom Tom Traffic Index, Population coefficient, Scaling analysis

3.

Warren Buffett Value Indicator vs. GDP Size ─ Is the Relationship Superlinear?

International Journal of Economics and Business Research, 2018, vol. 15, No. 2
Number of pages: 21 Posted: 13 Jan 2017 Last Revised: 26 Mar 2018
Yu Sang Chang and Do Hyun Pak
Gachon University - College of Business and Economics and Gachon University
Downloads 388 (143,245)
Citation 2

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Warren Buffett Value Indicator, Buffett indicator, Superlinear relation, International investment

4.

Limit to Improvement in Running and Swimming

International Journal of Applied Management Science, Volume 3, Issue 1, pp. 97-120, 2011
Number of pages: 22 Posted: 02 Jun 2010 Last Revised: 31 Jan 2018
Yu Sang Chang and Seung Jin Baek
Gachon University - College of Business and Economics and United Nations
Downloads 342 (164,632)
Citation 1

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World Record, Time to Limit, Logistic Regression, Running, Swimming

5.

Limit to Improvement: Myth or Reality? Empirical Analysis of Historical Improvement on Three Technologies Influential in the Evolution of Civilization

Techonological Forecasting and Social Change, Volume 77, Issue 5, pp. 712-729, 2010, KDI School of Public Policy & Management Paper Series No. 09-06
Number of pages: 42 Posted: 13 Aug 2009 Last Revised: 31 Jan 2018
Yu Sang Chang and Seung Jin Baek
Gachon University - College of Business and Economics and United Nations
Downloads 338 (166,676)
Citation 4

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Technology S-Curve, X-Factor Analysis, Continuous Improvement, Disconnected Technology, Performance Difference, Lighting, Transport, Information and Communication

6.

Strategy, Structure, and Channel of Industrial Service Leaders

Int. J. Services Technology and Management, Vol. 17, Nos. 2/3/4, 2012, KDI School of Pub Policy & Management Paper No. 08-12
Number of pages: 25 Posted: 18 Sep 2008 Last Revised: 08 Mar 2024
Yu Sang Chang
Gachon University - College of Business and Economics
Downloads 257 (221,405)

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industrial service; service leaders; expanded value chain; service portfolio; front-line service; back-up service; service strategy; service organisations

7.

Are Technology Improvement Rates of Knowledge Industries Following Moore’s Law?: An Empirical Study of Microprocessor, Mobile Cellular, and Genome Sequencing Technologies

International Journal of Technology Management(2018), Vol. 78, No.3, pp. 182-207
Number of pages: 25 Posted: 07 Mar 2012 Last Revised: 25 Oct 2018
Yu Sang Chang, Jinsoo Lee and Yun Seok JUNG
Gachon University - College of Business and Economics, KDI School of Public Policy and Management and Bytedance Inc.
Downloads 255 (223,112)
Citation 1

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Knowledge Industry, Exponential Trends of Improvement, Moore’s Law, Microprocessor, Mobile Cellular, Genome Sequencing

8.

Making Strategic Short-Term Cost Estimation by Annualized Experience Curve

International Jounal of Applied Management Science, Vol 2, No.3, 2010, p.262-281, KDI School of Pub Policy & Management Paper No. 09-01
Number of pages: 37 Posted: 23 Feb 2009 Last Revised: 08 Mar 2024
Yu Sang Chang
Gachon University - College of Business and Economics
Downloads 186 (299,942)

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Experience Concept and Curve, Short-Term Cost Estimation, Time-Based Improvement Methods, Strategic Costing, Moore's Law

9.

Dynamic Competitive Paradigm of Managing Moving Targets: Implications for Korean Industry

KDI School of Pub Policy & Management Paper No. 06-05, Korean Social Science Journal, Vol.XXXIII, No.2,, pp. 67-110, 2006
Number of pages: 48 Posted: 14 Dec 2006 Last Revised: 08 Mar 2024
Yu Sang Chang
Gachon University - College of Business and Economics
Downloads 183 (304,212)
Citation 2

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Dynamic competitive priority, Operational excellence, Customer intimacy, Product leadership, Integral organization, Modular organization, Hybrid organization

10.

Can We Predict Long-Term Future Crime Rates?

International J. of Society Systems Science (2016) Vol. 8, No. 3
Number of pages: 56 Posted: 08 Aug 2013 Last Revised: 29 Jul 2017
Yu Sang Chang and Changyong Choi
Gachon University - College of Business and Economics and KDI School of Public Policy and Management
Downloads 170 (324,672)
Citation 1

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projection of crime rates, total crime rates, violent crime rates, classical experience curve, kinked experience curves, kinked slope, kinked year

11.

Alternative Projection of the World Energy Consumption - In Comparison with the 2010 International Energy Outlook

Energy Policy 50 (2012) 154-160, KDI School of Pub Policy & Management Paper No. 12-08
Number of pages: 7 Posted: 20 Feb 2011 Last Revised: 10 Jun 2018
Yu Sang Chang, Jinsoo Lee and Hyerim Yoon
Gachon University - College of Business and Economics, KDI School of Public Policy and Management and KDI School of Public Policy and Management
Downloads 139 (383,377)
Citation 1

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Energy Consumption, Experience Model

12.

Is Forecasting Future Suicide Rate Possible? - Application of Experience Curve

Engineering Management Research vol.1, No.1, May, 2012, KDI School of Pub Policy & Management Paper No. 10-10
Number of pages: 32 Posted: 27 Sep 2010 Last Revised: 21 Jun 2012
Yu Sang Chang and Jinsoo Lee
Gachon University - College of Business and Economics and KDI School of Public Policy and Management
Downloads 133 (396,877)
Citation 2

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forecast of suicide rate, experience curve analysis

13.

Forecasting Road Fatalities by the Use of Kinked Experience Curve

Int. J. Data Analysis Techniques and Strategies, Vl. 5, No. 4, 2013, KDI School of Pub Policy & Management Paper No. 10-07
Number of pages: 33 Posted: 30 Jul 2010 Last Revised: 07 Jan 2014
Yu Sang Chang and Jinsoo Lee
Gachon University - College of Business and Economics and KDI School of Public Policy and Management
Downloads 128 (408,827)
Citation 2

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Road Fatalities, Experience Curve, Kinked Experience Curve

14.

More Traffic Congestion in Larger Cities? - Scaling Analysis of the Large 101 U.S Urban Centers

Gachon GCCR Working Paper Series No.15-5, Transport Policy, 59, (2017) 54-63
Number of pages: 44 Posted: 27 Mar 2015 Last Revised: 26 Mar 2018
Yu Sang Chang, Yong Joo Lee and SungSup Choi
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics and Gachon University - College of Business and Economics
Downloads 117 (437,316)
Citation 2

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Urban congestion, Population size, Total delay hours, Excess CO₂ emission, Excess fuel consumption, Superlinear relation

15.

Kinked Experience Curve

Encyclopedia of Business Analytic and optimigation, (2014), 1358.
Number of pages: 12 Posted: 05 Aug 2013 Last Revised: 26 Mar 2015
Yu Sang Chang and Jinsoo Lee
Gachon University - College of Business and Economics and KDI School of Public Policy and Management
Downloads 114 (445,816)

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16.

The Speed and Impact of a New Technology Diffusion in Organ Transplantation: A Case Study Approach

Arenives Des Science, Vol.65, #11, Nov.2012
Number of pages: 48 Posted: 17 Jan 2011 Last Revised: 26 Mar 2015
Yu Sang Chang, Jinsoo Lee and Yun Seok JUNG
Gachon University - College of Business and Economics, KDI School of Public Policy and Management and Bytedance Inc.
Downloads 110 (457,834)
Citation 4

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Technology Diffusion, Organ Transplants, Immunosuppressive Agents, Experience Curve

17.

Convergence Analysis of the Artificial Intelligence Divide: AI Investments and AI Start-ups

Gachon Center of Convergence Research Working Paper Series 2022-01
Number of pages: 35 Posted: 09 Jul 2022
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics, Gachon University - College of Business and Economics, Boston University - Frederick S. Pardee School of Global Studies and Gachon University - College of Business
Downloads 95 (509,910)

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Speed of catch-up, convergence, AI investment, start-ups, relative AI divide, absolute AI divide

18.

Toward a Revised Theory of Technology Cycle for the Knowledge Economy - An Empirical Analysis of Microprocessor, Mobile Cellular and Genome Sequencing Technologies

Int. J. Technolgy, Policy and Management, Vol. 19, No. 3, 2019, GCCR Working Paper Series No. 13. 05.
Number of pages: 55 Posted: 05 Aug 2013 Last Revised: 18 Jul 2019
Yu Sang Chang
Gachon University - College of Business and Economics
Downloads 94 (509,910)

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Super Radical Innovation, Technology Cycle, Dominant Design, Knowledge Technologies, Industrial Technologies

19.

Convergence Analysis on Ten Sub-Indexes of Economic Freedom

International Journal of Public Policy (2015), Vol. 11, No. 1/2/3
Number of pages: 35 Posted: 24 Mar 2014 Last Revised: 29 Jul 2017
Yu Sang Chang, Youngsoo Kim and JiHye Anna Kim
Gachon University - College of Business and Economics, Soongsil University and Soongsil University
Downloads 89 (527,741)

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Economic Freedom Indexes, Sigma convergence, Beta convergence, Sub-indexes

20.

An Empirical Fact of Urban Health Advantage vs. Urban Health Penalty - Scaling Analysis of Death Count in Four Major Disease Categories

International Journal of Society Systems Science, Vol. 10, No. 1, 2018
Number of pages: 32 Posted: 03 Nov 2015 Last Revised: 02 Nov 2018
SungSup Choi, Yong Joo Lee and Yu Sang Chang
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics and Gachon University - College of Business and Economics
Downloads 83 (550,792)

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Urban Health Penalty, Urban Health Advantage, Super-linearity, Sub-linearity, Scaling Relationship

21.

Do Income and Population Influence the Convergence in Energy Intensity?: A Cross-Country Analysis

International Journal of Energy Technology and Policy, vol.15.Nos 2/3, 2019, Gachon GCCR Working Paper Series 13-10
Number of pages: 21 Posted: 07 Dec 2013 Last Revised: 16 May 2019
Yu Sang Chang, Seongmin Jeon, NeiHei Park and Taesoo Song
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics, Gachon University - College of Business and Economics and Gachon University - College of Business and Economics
Downloads 83 (550,792)
Citation 7

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Energy Intensity, Convergence, Income, Population, Distribution Dynamics

22.

Tipping Points Toward Urban Pollution Advantage? Scaling of Carbon Dioxide Emissions in the US Urban Areas

International Journal of Environment and Sustainable Development (2020), Vol.19, No.2, pp.195-208, GCCR Working Paper Series 14-14
Number of pages: 13 Posted: 26 Aug 2014 Last Revised: 25 Nov 2020
Seongmin Jeon and Yu Sang Chang
Gachon University - College of Business and Economics and Gachon University - College of Business and Economics
Downloads 81 (558,925)
Citation 1

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Carbon dioxide emissions, urban pollution advantage, urban pollution penalty, neutral urban pollution, tipping point

23.

Portfolio Entrepreneurial Processes in the Context of Individual Ventures

Journal of International Business and Entrepreneurship Development (2015), Vol. 8, #4, 301-328, Gachon GCCR Working Paper Series No. 13-9
Number of pages: 49 Posted: 30 Jul 2013 Last Revised: 29 Jul 2017
Yu Sang Chang, Hyun Bae Cha and Jong Beom Moon
Gachon University - College of Business and Economics, JC HYUN Systems, Inc. and Konkuk University
Downloads 81 (558,925)

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24.

Using Experience Curve to Project Net Hydroelectricity Generation - In Comparison to EIA's Projection

International Journal of Energy Technology and Policy (2017), Vol. 13, No. 4, pp.305 - 319
Number of pages: 21 Posted: 15 Feb 2016 Last Revised: 01 Aug 2017
Yu Sang Chang, Sung Jun Jo and Seongmin Jeon
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics and Gachon University - College of Business and Economics
Downloads 76 (579,965)

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hydroelectricity intensity, net hydroelectricity generation, hydropower, experience curve

25.

Convergence Analysis of Terrestrial Protected Areas by 159 Countries

Ecology, Environment and Conservation. 27(1) : 2021; pp. (481-498), Gachon Center of Convergence Research Working Paper Series 2018-10
Number of pages: 18 Posted: 28 Sep 2018 Last Revised: 07 May 2021
Yu Sang Chang, Moon Jung Kim and Sung Jun Jo
Gachon University - College of Business and Economics, Gachon University - College of Business and Gachon University - College of Business and Economics
Downloads 73 (593,140)

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Terrestrial Protected Areas, Aicni Target 11, convergence analysis, σ and γ, indexes, speed of convergence

26.

Convergence Analysis of the Sanitation Index for 158 Countries

Journal of Environmental Accounting and Management 7(3) (2019) 263-277,GCCR Working Paper Series 17-06
Number of pages: 29 Posted: 15 Dec 2017 Last Revised: 26 Jun 2019
Yu Sang Chang, Yoo-Taek Lee, Yoonji Lee and MyungHoon Jin
Gachon University - College of Business and Economics, Endicott College of International Studies, Woosong University, Boston University - Frederick S. Pardee School of Global Studies and Gachon University - College of Business and Economics
Downloads 68 (616,228)
Citation 1

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Sanitation index, Millennium development goals, Convergences analysis, Sigma index, Gamma index

27.

Convergence Analysis of the Entrepreneurship Start-Up Barriers

Int. J. Management and Enterprise Development, Vol. 19, No. 1, 2020, pp.21 - 41, GCCR Working Paper Series 2017-03
Number of pages: 43 Posted: 12 May 2017 Last Revised: 27 Dec 2019
Yu Sang Chang, JiHye Anna Kim and Youngsoo Kim
Gachon University - College of Business and Economics, Soongsil University and Soongsil University
Downloads 68 (616,228)

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Start-up Barriers, Cost, Time, and Procedures, Sigma Convergence, Gamma Convergence

28.

When Will the Millennium Development Goal on Infant Mortality Rate Be Realized? Projections for 21 OECD Countries Through 2050

International Journal of Data Analysis Techniques and Strategies, Vol. 10, No. 1, 2018, KDI School of Pub Policy & Management Paper
Number of pages: 25 Posted: 17 Apr 2013 Last Revised: 07 Dec 2018
Yu Sang Chang, Jinsoo Lee and Hyuk Ju Kwon
Gachon University - College of Business and Economics, KDI School of Public Policy and Management and KDI School of Public Policy and Management
Downloads 67 (620,992)
Citation 1

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Child health, Health policy, Mortality

29.

Is the 2040 Projection on Net Electricity Generation by Energy Information Administration Too Conservative? In Comparison to Alternate Projection Using Experience Curve

GCCR working paper series 2016-03
Number of pages: 24 Posted: 16 Feb 2016 Last Revised: 27 Dec 2019
Yu Sang Chang, Jong Yi, Sung Jun Jo and Yoo-Taek Lee
Gachon University - College of Business and Economics, Gachon University, Gachon University - College of Business and Economics and Endicott College of International Studies, Woosong University
Downloads 65 (630,927)
Citation 7

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Net electricity generation, Electricity intensity, Kinked experience curve, Classical experience curve, Energy Information Administration

30.

Speed of Catch-up and Digital Divide: A Study of Three Information Communication Technologies for 44 African Countries

Journal of Global Information Technology Management https://doi.org/10.1080/1097198X.2020.1792231, Gachon Center of Convergence Research, Working Paper Series, 2019-03
Number of pages: 37 Posted: 31 Dec 2019 Last Revised: 12 Aug 2020
Yu Sang Chang, Seongmin Jeon and Kudzai Shamba
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics and affiliation not provided to SSRN
Downloads 64 (636,037)

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Digital Divide, Catch-Up, Sigma Convergence, Gamma Convergence, ICT, ITU

31.

Will the Stop TB Partnership Targets on TB Control Be Realized on Schedule? - Projection of Future Incidence, Prevalence and Death Rates

International Journal of Data Science, Vol.2, No. 1, 2017
Number of pages: 43 Posted: 20 Aug 2013 Last Revised: 26 Mar 2018
Yu Sang Chang, Changyong Choi and Jee Hee Yoon
Gachon University - College of Business and Economics, KDI School of Public Policy and Management and Korea Development Institute (KDI)
Downloads 61 (651,519)
Citation 27

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Tuberculosis (TB), Stop TB Partnership, classical experience curve, kinked experience curve, projection methodology

32.

Does the Species Protection Index for 198 Countries Converge Over Time?

Eco. Env. & Cons. 27 (3) : 2021; pp. (1003-1019)
Number of pages: 17 Posted: 12 Oct 2018 Last Revised: 06 May 2022
Yu Sang Chang, Myeong Cheol Choi and Hann Earl Kim
Gachon University - College of Business and Economics, Dept. of Global Business, Gachon University and Gachon University - College of Business and Economics
Downloads 60 (656,891)

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Species Protection Indicator, PSPU, PSPW, Convergence Analysis, and Indexes, Speed of Catch-Up

33.

Winners from The Changing Trends of Energy Intensities Among 115 Countries.

International J. of Technology, Policy, and Management (2020), Vol.20, No.3, pp.242-272, GCCR Working paper series 2016-01
Number of pages: 43 Posted: 16 Feb 2016 Last Revised: 23 Nov 2020
Yu Sang Chang, NeiHei Park and Jinbae Kim
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics and Korea University Business School (KUBS)
Downloads 60 (656,891)

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Energy intensity, Progress ratios, Classical experience curve, Kinked experience curve, Energy productivity

34.

How Much Wind-Powered Electricity May Be Generated in 2040 by China, the U.S. and Four Other Countries?

International J. of Energy Technology and Policy (2020), Vol.16, No.2, pp.196-212
Number of pages: 20 Posted: 23 Sep 2016 Last Revised: 25 Nov 2020
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics, Gachon University - College of Business and Economics and Endicott College of International Studies, Woosong University
Downloads 59 (662,229)

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Wind-Powered Electricity, Experience Curve, Wind Electricity Intensity, Wind-Powered Net Electricity Generation

35.

How Much More Electricity May Be Generated Through 2040 by Nuclear Power?

International Journal of Energy Technology and Policy (2019), Vol. 15, No. 4, pp.396 - 412
Number of pages: 28 Posted: 26 Mar 2016 Last Revised: 26 Oct 2019
Yu Sang Chang and Jinnie Yoo
Gachon University - College of Business and Economics and Gachon University - College of Business and Economics
Downloads 58 (667,648)

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Nuclear electricity intensity, Net nuclear electricity generation, Experience curve

36.

Dynamic Trends of Carbon Intensities Among 127 Countries

Sustainability 2017, 9, 2268, GCCR Working Paper Series 2017-05
Number of pages: 52 Posted: 02 Nov 2017 Last Revised: 26 Mar 2018
Yu Sang Chang, Dou Sung Choi and Hann Earl Kim
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics and Gachon University - College of Business and Economics
Downloads 53 (695,991)
Citation 1

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Carbon Intensity of Economic Output, CO2 Emissions, Progress Ratio, Classical Experience Curve, Kinked Experience Curve

37.

Next Frontier of Experience Curve Application - Predicting Performance of Large Learning Systems by Kinked Experience Curve

Number of pages: 30 Posted: 03 Aug 2013 Last Revised: 09 Aug 2013
Yu Sang Chang
Gachon University - College of Business and Economics
Downloads 51 (708,254)
Citation 1

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Kinked experience curve model, classical experience curve model, learning systems

38.

Convergence Analysis of Outdoor Air Pollution for Nitrogen Dioxide for 179 Countries

Gachon Center of Convergence Research Working Paper Series, 2018-06
Number of pages: 37 Posted: 23 Aug 2018
Yu Sang Chang, Yoo-Taek Lee and Yoonji Lee
Gachon University - College of Business and Economics, Endicott College of International Studies, Woosong University and Boston University - Frederick S. Pardee School of Global Studies
Downloads 50 (714,454)

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NO2 Pollution, Catch-Up Effect, σ Convergence, γ Convergence, Speed of Catch-Up

39.

Convergence Analysis on the Fish Stock Status Index for 131 Countries

Gachon Center of Convergence Research Working paper 2021-02
Number of pages: 45 Posted: 03 Aug 2020 Last Revised: 16 Apr 2021
Yu Sang Chang, Moon Jung Kim and Su Min Kim
Gachon University - College of Business and Economics, Gachon University - College of Business and Gachon University - College of Business
Downloads 49 (720,775)

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Maximum sustainable yield, “Overfished”, Dispersion reduction (σ convergence), catch-up (γ convergence)

40.

Do Globalization Indices for 141 Countries Converge Over Time?

Gachon Center of Convergence Research Working Paper Series, 2019-01
Number of pages: 35 Posted: 13 Mar 2019 Last Revised: 01 Sep 2019
Yu Sang Chang, Hann Earl Kim and Sung Jun Jo
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics and Gachon University - College of Business and Economics
Downloads 49 (720,775)

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KOF globalization indices, Overall index, Economic index, Political index, Social index, Sigma convergence, Gamma convergence

41.

Do Larger Cities Experience Lower Crime Rates? Scaling Analysis of 758 cities in the U.S.

Sustainability 2019, 11, 3111; doi:10.3390/su11113111, Gachon Center of Convergence Research Working paper 2019-02
Number of pages: 33 Posted: 19 Mar 2019 Last Revised: 26 Jun 2019
Yu Sang Chang, Hann Earl Kim and Seongmin Jeon
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics and Gachon University - College of Business and Economics
Downloads 48 (727,104)
Citation 3

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violent crime counts, property crime counts, population size of city, superlinear relationship, sublinear relationship, linear relationship

42.

Comparative Analysis Among the Four Groups of 30 Countries Each With the Highest Versus the Lowest Air Pollution

GCCR Working Paper Series, 2018-05
Number of pages: 49 Posted: 16 Jun 2018 Last Revised: 27 Jul 2018
Yu Sang Chang, Do Hyun Pak, Seongmin Jeon and Jonghyup Lee
Gachon University - College of Business and Economics, Gachon University, Gachon University - College of Business and Economics and Gachon University
Downloads 47 (733,494)

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Convergence Analysis, Sigma Index, Gamma Index, Catch-Up Effect, PM2.5 Exposure, PM2.5 Exceedance

43.

Alternative Projections of Solar-Powered Electricity in 2040 for Six Major Producing Countries

Gachon Working Paper 2017-4
Number of pages: 25 Posted: 07 Sep 2017
Yu Sang Chang, Do Hyun Pak and Seongmin Jeon
Gachon University - College of Business and Economics, Gachon University and Gachon University - College of Business and Economics
Downloads 47 (733,494)

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Solar-powered electricity, Experience curve, Solar electricity intensity, Experience slope

44.

Scaling Relationship of Five Safety Indexes vs. Population Size for 42 to 49 Global Cities

Gachon Center of Convergence Research Working Paper Series, 2018-07
Number of pages: 38 Posted: 07 Aug 2018 Last Revised: 06 Nov 2018
Yu Sang Chang, Seongmin Jeon and Jaeram Lee
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics and College of Business
Downloads 46 (739,951)

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Urban Scale Advantage, Urban Safety Advantage, Safety City Index, STIRPAT Model

45.

Does the Corruption Perception Index for 129 Countries Converge Over Time?

GCCR Working Paper Series, 2018-01
Number of pages: 40 Posted: 12 Jan 2018 Last Revised: 08 May 2018
Yu Sang Chang
Gachon University - College of Business and Economics
Downloads 46 (739,951)

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Corruption Perception Index, Convergence Analysis, Sigma Index, Gamma Index, Catch-up Effect, Reduction of Dispersion

46.

Speed of Catch-up and Convergence of the Artificial Intelligence Divide: Robotic and Patents

Gachon Center of Convergence Research Working Paper Series 2022-02
Number of pages: 35 Posted: 09 Jul 2022 Last Revised: 24 Aug 2022
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics, Gachon University - College of Business and Economics and Gachon University - College of Business
Downloads 45 (746,752)

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Speed of catch-up, convergence, artificial intelligence divide, robotic, patents, relative ai divide, absolute ai divide

47.

Convergence Analysis of Fine Particulate PM2.5 Concentrations for 212 to 108 Countries

GCCR Working Paper Series, 2018-04
Number of pages: 55 Posted: 24 May 2018 Last Revised: 16 Apr 2021
Yu Sang Chang, Do Hyun Pak and Hyeongsop Shim
Gachon University - College of Business and Economics, Gachon University and Gachon University
Downloads 44 (753,506)
Citation 1

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convergence analysis, PM2.5 exposures, PM2.5 exceedance, sigma index, gamma index, catch-up effect

48.

Convergence Analysis of the Improved Water Sources for 203 Countries

Journal of Environmental Accounting and Management 8(3) (2020) 215-228, GCCR Working Paper Series, 2018-02
Number of pages: 36 Posted: 12 Feb 2018 Last Revised: 25 Nov 2020
Yu Sang Chang, Yoo-Taek Lee, Yoonji Lee and Ki Baek Kim
Gachon University - College of Business and Economics, Endicott College of International Studies, Woosong University, Boston University - Frederick S. Pardee School of Global Studies and Syracuse University
Downloads 44 (753,506)

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Improved Water Source, Millennium Development Goals (MDGs), Convergences Analysis, Sigma Index, Gamma Index

49.

Convergence Analysis of Regional Digital Divide on Internet and Mobile Phone Usage in China

Gachon Center of Convergence Research Working Paper Series 2022-03
Number of pages: 46 Posted: 26 Jul 2022
Gachon University - College of Business and Economics, Dept. of Global Business, Gachon University, Gachon University - College of Business and Economics, Boston University - Frederick S. Pardee School of Global Studies and Gachon University - College of Business
Downloads 43 (760,488)
Citation 2

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Speed of catch-up, convergence, divergence, three levels of digital divide, influencing determinants, regional digital divide, relative digital divide, absolute digital divide

50.

Dynamic Electricity Intensity Trends in 91 Countries

Sustainability 2021, 13, 4588 https://doi.org/10.3390/su13084588, GCCR working paper series 2017-02
Number of pages: 26 Posted: 30 Mar 2017 Last Revised: 07 May 2021
Hann Earl Kim, Yu Sang Chang and Heejin Kim
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics and Gachon University - College of Business and Economics
Downloads 43 (760,488)

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electricity intensity; progress ratio; classical experience curve; kinked experience curve;

51.

Do the Regional E-Commerce Transactions Divides in China Converge?

Gachon Center of Convergence Research Working Paper Series 2022-04
Number of pages: 32 Posted: 30 Sep 2022
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics, Dept. of Global Business, Gachon University and Gachon University - College of Business
Downloads 40 (782,066)

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Regional e-commerce divide, speed of catch-up, relative digital divide, absolute digital divide, convergence, divergence, platform competition

52.

The Offsetting Impact of Dependency and Urbanization on Mean Years of Schooling: A Scaling Analysis of 97 Countries

Number of pages: 30 Posted: 06 Dec 2021
Yu Sang Chang, Moon Jung Kim and Su Min Kim
Gachon University - College of Business and Economics, Gachon University - College of Business and Gachon University - College of Business
Downloads 37 (804,323)

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mean years of schooling, dependency, urbanization, income, STIRPAT model, education

53.

Are there Higher Pedestrian Fatalities in Larger Cities? – A Scaling Analysis of 115 to 161 of the Largest Cities in the U.S.A

Traffic Injury Prevention (March 2016) Gachon GCCR Working Paper Series No. 15-1
Number of pages: 35 Posted: 28 May 2015 Last Revised: 16 Apr 2021
Yu Sang Chang, Won Jae Lee, Jae Hee Lee and Sun Joo Park
Gachon University - College of Business and Economics, Gachon University, Gachon University and Gachon University
Downloads 36 (812,021)

Abstract:

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54.

Higher Pedestrian Fatalities in Larger Cities? Scaling Analysis of Over 115 to 161 Large U.S. Cities

Number of pages: 35 Posted: 02 May 2015
Yu Sang Chang, Won Jae Lee and Jae Hee Lee
Gachon University - College of Business and Economics, Gachon University and Gachon University
Downloads 36 (812,021)

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55.

Population Density or Populations Size. Which Factor Determines Urban Traffic Congestion?

Sustainability 2021, 13, 4280 https://doi.org/10.3390/su13084280, Gachon Center of Convergence Research Working paper 2021-01
Number of pages: 21 Posted: 26 Apr 2021 Last Revised: 07 May 2021
Yu Sang Chang, Sung Jun Jo, Yoo-Taek Lee and Yoonji Lee
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics, Endicott College of International Studies, Woosong University and Boston University - Frederick S. Pardee School of Global Studies
Downloads 35 (819,835)

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Deployment Model, Service Model, Public Cloud, Private Cloud, Hybrid Cloud, Inter-Cloud, Federation Cloud, Multi Cloud

56.

Dynamic Trends of Fine Particulate Matter Exposure Among 190 Countries

Sustainability 2020, 12, 2910 ; doi 10.3390/su 12072910. Gachon Center of Convergence Research, Working Paper Series, 2019-06
Number of pages: 53 Posted: 16 Dec 2019 Last Revised: 07 Jul 2020
Yu Sang Chang, Byong Jin You and Hann Earl Kim
Gachon University - College of Business and Economics, affiliation not provided to SSRN and Gachon University - College of Business and Economics
Downloads 34 (827,996)
Citation 3

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PME; PM2.5 exposure; cumulative energy consumption, progress ratio; classical experience curve

57.

Convergence Analysis of Marine Protected Areas by 104 Countries

Gachon Center of Convergence Research Working Paper Series, 2018-09
Number of pages: 36 Posted: 26 Sep 2018
Yu Sang Chang, Hann Earl Kim and Myeong Cheol Choi
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics and Dept. of Global Business, Gachon University
Downloads 34 (827,996)

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Marine Protected Areas, Exclusive Economic Zone, Convergence Analysis, σ and γ, Indexes, Speed of Convergence

58.

Convergence Analysis of 5 Suicide Measures for 57 Countries During 1995 to 2015

Gachon Center of Convergence Research Working Paper Series, 2019-04
Number of pages: 43 Posted: 12 Jul 2019
Yu Sang Chang
Gachon University - College of Business and Economics
Downloads 30 (861,299)

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Total Suicide Ratio, Female Suicide Ratio, Male Suicide Ratio, Youth Suicide Ratio, Old Suicide Ratio, Annual Reduction Rate of Suicide Ratios, Annual Speed of Catch-Up Effects, Gamma Convergence, Sigma Convergence

59.

Comparative Analysis of Long-Term Road Fatality Targets for Individual States in America - An Application of Experience Curve Models

Transport Policy. 36 (2014) 53-69.
Number of pages: 27 Posted: 09 Oct 2013 Last Revised: 26 Mar 2015
Yu Sang Chang
Gachon University - College of Business and Economics
Downloads 30 (861,299)

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60.

How Rapidly Do the Road Fatality Rates of 37 Countries Converge Over Time?

The Open Transportation Journal, DOI: 10.2174/1874447801913010169, 2019, 13, 169-181
Number of pages: 39 Posted: 16 Dec 2019 Last Revised: 10 Jul 2020
Yu Sang Chang and Sung Jun Jo
Gachon University - College of Business and Economics and Gachon University - College of Business and Economics
Downloads 29 (869,906)

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Road fatality rate, Convergence analysis, Catch-up effect, Reduction of

61.

Dynamic Trends of NO₂ Concentrations among 109 Countries

Number of pages: 54 Posted: 06 Dec 2021
Yu Sang Chang, Hann Earl Kim and Su Min Kim
Gachon University - College of Business and Economics, Gachon University - College of Business and Economics and Gachon University - College of Business
Downloads 25 (906,100)

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Nitrogen Dioxide Concentration (NO₂C), progress ratio, classical experience curve, kinked experience curve

62.

Impact of Income, Density, and Population Size on PM2.5 Pollutions: A Scaling Analysis of 254 Large Cities in Six Developed Countries

Int. J. Environ. Res. Public Health 2021, 18(17), 9019; https://doi.org/10.3390/ijerph18179019
Number of pages: 30 Posted: 20 Aug 2021 Last Revised: 06 May 2022
Moon Jung Kim, Yu Sang Chang and Su Min Kim
Gachon University - College of Business, Gachon University - College of Business and Economics and Gachon University - College of Business
Downloads 23 (925,191)

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PM2.5 concentrations; city income per capita; population density; population size; STIRPAT model; threshold regression; environmental kuznet curve