Abdi, H., & Williams, L. J. (2010). Principal component analysis. WIREs Computational Statistics, 2(4), 433-459. https://doi.org/10.1002/wics.101

Abduraxmanova, S. A. (2022). Individualization of professional education process on the basis of digital technologies. World Bulletin of Social Sciences, 8, 65-67.

Aceto, G., Persico, V., & Pescapé, A. (2019). A survey on information and communication technologies for industry 4.0: State-of-the-art, taxonomies, perspectives, and challenges. IEEE Communications Surveys & Tutorials, 21(4), 3467-3501.

Akhmedov, B. A. (2023). Improvement of the digital economy and its significance in higher education in tashkent region. Uzbek Scholar Journal, 12, 18-21.

Alfoul, M. N. A. (2022). Effects of ICT Investment and Usage on Economic Growth in MENA Countries: Does Governance Matter Swinburne University of Technology Hawthorn, VIC, Australia].

Azadi, A., Delangizan, S., & Falahati, A. (2021). The role of governments in Iran regional development (case study: tenth government). Iranian Economic Review, 25(1), 1-20.

Azamat, O., Sherzod, S., Dilshod, S., Gulyar, K., Gulnur, A., Zarifa, K., & Sarvar, T. (2023). The Role of Digital Technology in the Future of Insurance and Economic Development. Journal of Law and Sustainable Development, 11(5), e1081. https://doi.org/10.55908/sdgs.v11i5.1081

Bahadirovich, A. F. (2023). Condition for the formation of a digital economy in the republic of Uzbekistan, Gospodarka i Innowacje., 365-370.

Bakumenko, L. P., & Minina, E. A. (2020). International index of digital economy and society (I-DESI): trends in the development of digital technologies. Statistics and economics, 17(2), 40-54. https://doi.org/10.21686/2500-3925-2020-2-40-54

Barefoot, K., Curtis, D., Jolliff, W., Nicholson, J. R., & Omohundro, R. (2018). Defining and measuring the digital economy. US Department of Commerce Bureau of Economic Analysis, Washington, DC, 15, 210.

Ben Salem, K., & Ben Abdelaziz, A. (2021). Principal Component Analysis (PCA). La Tunisie medicale, 99(4), 383-389.

Borenstein, S., & Saloner, G. (2001). Economics and electronic commerce. Journal of Economic Perspectives, 15(1), 3-12.

Borg, M., Wernberg, J., Olsson, T., Franke, U., & Andersson, M. (2020). Illuminating a Blind Spot in Digitalization - Software Development in Sweden's Private and Public Sector Proceedings of the IEEE/ACM 42nd International Conference on Software Engineering Workshops, Seoul, Republic of Korea. https://doi.org/10.1145/3387940.3392213

Brynjolfsson, E., Diewert, W. E., Eggers, F., Fox, K. J., & Gannamaneni, A. (2018). The digital economy, GDP and consumer welfare: Theory and evidence. ESCoE Conference on Economic Measurement, Bank of England,

Bukht, R., & Heeks, R. (2017). Defining, conceptualising and measuring the digital economy. Development Informatics working paper(68).

Bygstad, B., Øvrelid, E., Ludvigsen, S., & Dæhlen, M. (2022). From dual digitalization to digital learning space: Exploring the digital transformation of higher education. Computers & Education, 182, 104463.

Darley, W. K. (2003). Public policy challenges and implications of the Internet and the emerging e-commerce for sub-Saharan Africa: A business perspective. Information Technology for Development, 10(1), 1-12. https://doi.org/10.1002/itdj.1590100102

De Baets, B., & De Meyer, H. (2013). On a conjecture about the Frank copula family. Fuzzy Sets and Systems, 228, 15-28. https://doi.org/10.1016/j.fss.2012.07.007

Deyhoul, M., Ahmadi, S., & Mirfardi, A. (2019). Development and Crime in Iran. Quarterly of Social Studies and Research in Iran, 8(3), 581-608.

Dhaoui, I. (2022). E-government for sustainable development: Evidence from MENA countries. Journal of the Knowledge Economy, 13(3), 2070-2099.

Di Giulio, M., & Vecchi, G. (2023). Implementing digitalization in the public sector. Technologies, agency, and governance. Public Policy and Administration, 38(2), 133-158. https://doi.org/10.1177/09520767211023283

ElMaraghy, H., Monostori, L., Schuh, G., & ElMaraghy, W. (2021). Evolution and future of manufacturing systems. CIRP Annals, 70(2), 635-658.

Faridah Pardi, Z. S., Mohd Azlan Abd Majid, Sutina Junos, Noor Azillah Mohamad Ali. (2021). Digital Economy and Sustainable Development Path in Selected Asian Countries. Global Business and Management Research, 13(4), 167-180.

Fattahi, S., & Kian poor, S. (2020). The Dependence of Returns in Stock Exchange Returns and Gold Markets with Spread of Covid-19 Virus in Iran: The Copula Functions Approach. Journal of Economics and Modelling, 11(2), 181-221. (In Persian)

https://doi.org/10.29252/jem.2021.185233.1493

Febiri, F., & Hub, M. (2021). Digitalization of Global Economy: A Qualitative Study Exploring Key Indicators use to measure digital progress in the Public sector. SHS Web of Conferences. Volume 92 (2021),

Fischer, M., Köck, C., Schlüter, S., & Weigert, F. (2009). An empirical analysis of multivariate copula models. Quantitative Finance, 9(7), 839-854.

https://doi.org/10.1080/14697680802595650

Forkman, J., Josse, J., & Piepho, H.-P. (2019). Hypothesis Tests for Principal Component Analysis When Variables are Standardized. Journal of Agricultural, Biological and Environmental Statistics, 24(2), 289-308. https://doi.org/10.1007/s13253-019-00355-5

Greenacre, M., Groenen, P. J. F., Hastie, T., D’Enza, A. I., Markos, A., & Tuzhilina, E. (2022). Principal component analysis. Nature Reviews Methods Primers, 2(1), 100.

https://doi.org/10.1038/s43586-022-00184-w

Greve, B. (2019). The digital economy and the future of European welfare states. International Social Security Review, 72(3), 79-94.

Har, L. L., Rashid, U. K., Te Chuan, L., Sen, S. C., & Xia, L. Y. (2022). Revolution of retail industry: from perspective of retail 1.0 to 4.0. Procedia Computer Science, 200, 1615-1625.

Hassoun, A., Aït-Kaddour, A., Abu-Mahfouz, A. M., Rathod, N. B., Bader, F., Barba, F. J., Biancolillo, A., Cropotova, J., Galanakis, C. M., & Jambrak, A. R. (2023). The fourth industrial revolution in the food industry—Part I: Industry 4.0 technologies. Critical Reviews in Food Science and Nutrition, 63(23), 6547-6563.

Irtyshcheva, I., Stehnei, M., Popadynet, N., Bogatyrev, K., Boiko, Y., Kramarenko, I., Senkevich, O., Hryshyna, N., Kozak, I., & Ishchenko, O. (2021). The effect of digital technology development on economic growth.

Jain, V., Malviya, B., & Arya, S. (2021). An overview of electronic commerce (e-Commerce). Journal of Contemporary Issues in Business and Government, 27(3), 665-670.

Ji, X. (2023). Multivariate Extreme Wind Loads: Copula-Based Analysis. Journal of Engineering Mechanics, 149(1), 04022082. https://doi.org/10.1061/(ASCE)EM.1943-7889.0002174

Jiang, C., Chang, H., & Shahzad, I. (2022). Digital economy and health: does green technology matter in BRICS economies? Frontiers in Public Health, 9, 827915.

Jiang, H., & Murmann, J. P. (2022). The Rise of China's Digital Economy: An Overview. Management and Organization Review, 18(4), 790-802.

https://doi.org/10.1017/mor.2022.32

Jong-Min, K. (2020). A Review of Copula Methods for Measuring Uncertainty in Finance and Economics. Quantitative Bio-Science, 39(2), 81-90.

Kamberidou, I. (2020). “Distinguished” women entrepreneurs in the digital economy and the multitasking whirlpool. Journal of Innovation and Entrepreneurship, 9(1), 3.

https://doi.org/10.1186/s13731-020-0114-y

Kazemi, A., Rezapoor, A., Faradonbeh, S. B., Nakhaei, M., & Ghazanfari, S. (2015). Study the development level of provinces in Iran: a focus on health indicators. Journal of Health Administration (JHA), 18(59). (In Persian)

Kherif, F., & Latypova, A. (2020). Chapter 12 - Principal component analysis. In A. Mechelli & S. Vieira (Eds.), Machine Learning (pp. 209-225). Academic Press.

https://doi.org/10.1016/B978-0-12-815739-8.00012-2

Kim, J. (2006). Infrastructure of the digital economy: Some empirical findings with the case of Korea. Technological Forecasting and Social Change, 73(4), 377-389. https://doi.org/10.1016/j.techfore.2004.09.003

Koh, L., Orzes, G., & Jia, F. J. (2019). The fourth industrial revolution (Industry 4.0): technologies disruption on operations and supply chain management. International Journal of Operations & Production Management, 39(6/7/8), 817-828.

Kolesnikov, A., Zernova, L., Degtyareva, V., Panko, I. V., & Sigidov, Y. I. (2020). Global trends of the digital economy development. Opción: Revista de Ciencias Humanas y Sociales(26), 523-540.

Laitsou, E., & Xenakis, A. (2023). The impact of digital development on human well being and vice versa.

Le Thanh, H., Phuc, H. N., Xuan, N. P., & Dinh, B. H. (2022). Influences of Digital Transformation on Life Expectancy and the Gender Gap in European Countries. International Journal of Electronic Government Research (IJEGR), 18(2), 1-28.

Lee, C.-W., & Kim, M.-S. (2019). The relationship between internet environment and life expectancy in Asia. Review of Integrative Business and Economics Research, 8(2), 70-80.

Lee, N., & Clarke, S. (2019). Do low-skilled workers gain from high-tech employment growth? High-technology multipliers, employment and wages in Britain. Research Policy, 48(9), 103803. https://doi.org/10.1016/j.respol.2019.05.012

Li, K., Kim, D. J., Lang, K. R., Kauffman, R. J., & Naldi, M. (2020). How should we understand the digital economy in Asia? Critical assessment and research agenda. Electronic commerce research and applications, 44, 101004.

Limna, P., Kraiwanit, T., & Siripipatthanakul, S. (2023). The Growing Trend of Digital Economy: A Review Article. International Journal of Computing Sciences Research, 7, 1351-1361.

Lind, N. (2019). A development of the human development index. Social Indicators Research, 146(3), 409-423.

Liu, X.-d., Pan, F., Cai, W.-l., & Peng, R. (2020). Correlation and risk measurement modeling: A Markov-switching mixed Clayton copula approach. Reliability Engineering & System Safety, 197, 106808. https://doi.org/10.1016/j.ress.2020.106808

Lyu, Y., Peng, Y., Liu, H., & Hwang, J.-J. (2022). Impact of digital economy on the provision efficiency for public health services: empirical study of 31 provinces in China. International Journal of Environmental Research and Public Health, 19(10), 5978.

Makhmudova Dilbar, R. (2021). Tasks and solutions to improve small business in the development of the digital economy, Conferencious Online, 57-60.

Mallaboyev, N. (2023). The role of information and communication technologies in the  development of the digital economy, Development of pedagogical technologies in modern sciences, 2(6), 5-12.

Mao, X. (2023). Analysis of the influence path of digital infrastructure on economic development. Advances in Economics Management and Political Sciences, 25(1), 47-55. https://doi.org/10.54254/2754-1169/25/20230474

Mensah, I. K. (2019). Impact of government capacity and E-government performance on the adoption of E-Government services. International Journal of Public Administration.

Mohajan, H. (2019). The second industrial revolution has brought modern social and economic developments.

Mosadeghrad, A., Pour, R. A., Abolhasan, B. G. N., & Shahebrahimi, S. (2019). Impact of Human Development Index on mortality rates in Iran. Iranian Journal of Epidemiology, 14(4).

Muralidharan, K., Shanmugan, K., & Klochkov, Y. (2022). The new education policy 2020, digitalization and quality of life in India: Some reflections. Education Sciences, 12(2), 75.

Natalya, A. Y., Elena, S. Z., Natalya, V. A., & Vladimir, A. G. (2020). Model of Consumer Behavior during the Digital Transformation of the Economy. Industrial Engineering & Management Systems, 19(3), 576-588. https://doi.org/10.7232/iems.2020.19.3.576

Nazaritehrani, A., & Mashali, B. (2020). Development of E-banking channels and market share in developing countries. Financial Innovation, 6(1), 12.

Omrani, H., Alizadeh, A., & Amini, M. (2020). A new approach based on BWM and MULTIMOORA methods for calculating semi-human development index: An application for provinces of Iran. Socio-Economic Planning Sciences, 70, 100689.

Ovcharov, A. O., & Terekhov, A. M. (2023). Building a country rating of digitalization of the economy based on the principal component analysis. Voprosy statistiki, 30(1), 58-69. https://doi.org/10.34023/2313-6383-2023-30-1-58-69

Pantelimon, F., Georgescu, T., & Posedaru, B. (2020). The impact of mobile e-commerce on gdp: A comparative analysis between romania and germany and how covid-19 influences the e-commerce activity worldwide. Informatica Economica, 24(2), 27-41.

Patton, A. J. (2012). A review of copula models for economic time series. Journal of Multivariate Analysis, 110, 4-18. https://doi.org/10.1016/j.jmva.2012.02.021

Prasetyani, D., Sangka, K., & Juwita, A. (2024). Constructing digital economy acceptance index (DEAI): A comparative analysis of developed and developing countries. International Journal of Data and Network Science, 8(4), 2107-2118.

http://dx.doi.org/10.5267/j.ijdns.2024.6.020

Pylypenko., Andrii, Shvets. (2024). Digital dimension of human capital development. Ekonomìčnij vìsnik Dnìprovsʹkoï polìtehnìki, 86:74-80. https://doi.org/10.33271/ebdut/86.074

Rehman, N. U., & Nunziante, G. (2023). The effect of the digital economy on total factor productivity in European regions. Telecommunications Policy, 102650. https://doi.org/10.1016/j.telpol.2023.102650

Ringnér, M. (2008). What is principal component analysis? Nature Biotechnology, 26(3), 303-304. https://doi.org/10.1038/nbt0308-303

Safari-Katesari, H., Samadi, S. Y., & Zaroudi, S. (2020). Modelling count data via copulas. Statistics, 54(6), 1329-1355. https://doi.org/10.1080/02331888.2020.1867140

Shevchenko, I., Lysak, O., Shyshak, A. Z., Mazur, I., Korotun, M., & Nestor, V. (2023). Digital Economy in a Global Context: World Experience. International Journal of Professional Business Review: Int. J. Prof. Bus. Rev., 8(4), 11.

Sitepu, E., Sembiring, M., Kia, A. D., & Nggebu, S. (2022). Education Transformation In The Digitalization Age As The Future Of The Nation. Journal Of Applied Linguistics, 2(1), 8-16.

Skare, M., & Soriano, D. R. (2021). How globalization is changing digital technology adoption: An international perspective. Journal of Innovation & Knowledge, 6(4), 222-233.

Stavytskyy, A., Kharlamova, G., & Stoica, E. A. (2019). The Analysis of the Digital Economy and Society Index in the EU. TalTech Journal of European Studies, 9(3), 245-261. https://doi.org/10.1515/bjes-2019-0032

Taalbi, J. (2019). Origins and pathways of innovation in the third industrial revolution. Industrial and corporate change, 28(5), 1125-1148.

Tondro, M., Jahanbakht, M., Rabbani, S. B., & Zaber, M. (2022). Does immergence of ICT focused institutions increase the pace of urban development? A provincial case study in Iran using data from the ground and above. 2022 IEEE Conference on Technologies for Sustainability (SusTech),

Trivedi, P. K., & Zimmer, D. M. (2007). Copula Modeling: An Introduction for Practitioners. Foundations and Trends in Econometrics, 1(1), 1-111.

 https://doi.org/10.1561/0800000005

Voronkova, V., Nikitenko, V., Oleksenko, R., Andriukaitiene, R., Kharchenko, J., & Kliuienko, E. (2023). Digital technology evolution of the industrial revolution from 4g to 5g in the context of the challenges of digital globalization. TEM Journal, 12(2), 732-742.

Wang, Z., & Shi, P. (2021). Research and Analysis on the Index System of Digital Economy in Anhui Province. Complexity, 2021, 5535864. https://doi.org/10.1155/2021/5535864

Williams, L. D. (2021). Concepts of Digital Economy and Industry 4.0 in Intelligent and information systems. International Journal of Intelligent Networks, 2, 122-129.

Yalcintas, A., & Alizadeh, N. (2020). Digital protectionism and national planning in the age of the internet: the case of Iran. Journal of Institutional Economics, 16(4), 519-536.

Yan, J. (2023). Multivariate Modeling with Copulas and Engineering Applications. In H. Pham (Ed.), Springer Handbook of Engineering Statistics (pp. 931-945). Springer London. https://doi.org/10.1007/978-1-4471-7503-2_46

Yazdanpanah, M., Moradi, M., & Asgar Khani, A. M. (2023). Scientific and technological diplomacy and regional development of Iran. World Politics. (In Persian)

You, Z.-T., Zhong, M., Gao, Q., Wei, H.-X., & Zeng, X.-H. (2021). The impact of digital economy on residents' health: based on the perspective of population ageing. Frontiers in Public Health, 9, 725971.

Zhang, W., Zhao, S., Wan, X., & Yao, Y. (2021). Study on the effect of digital economy on high-quality economic development in China. PloS one, 16(9), e0257365.

Zhang, Z. (2023). The impact of the artificial intelligence industry on the number and structure of employments in the digital economy environment. Technological Forecasting and Social Change, 197, 122881. https://doi.org/10.1016/j.techfore.2023.122881

Zhao, Y., Kong, X., Ahmad, M., & Ahmed, Z. (2023). Digital Economy, Industrial Structure, and Environmental Quality: Assessing the Roles of Educational Investment, Green Innovation, and Economic Globalization. Sustainability, 15(3), 2377.