This Reprint, titled "Economic Development in the Digital Economy Era," brings together thirteen research contributions examining how digital transformation reshapes economic development across diverse geographical and institutional contexts. The collection explores critical dimensions of digitalization, including corporate digital transformation strategies, artificial intelligence applications in international trade, blockchain integration in business models, and the environmental implications of digital economy advancement. Studies span multiple regions, from digital transformation efficiency across European Union member states to carbon emission dynamics in Chinese provinces, workforce readiness for automation in OECD countries, and ICT adoption in South African township economies. This research addresses both firm-level and macroeconomic perspectives, investigating how enterprises adopt digital strategies under institutional pressures, how digital technologies enhance manufacturing competitiveness through business model innovation, and how national digital infrastructure influences sustainable development trajectories. By combining empirical analyses with theoretical frameworks, this Reprint offers insights into the opportunities and challenges that developing and developed economies face during digital transformation. It serves as a valuable resource for researchers, policymakers, and practitioners seeking evidence-based approaches to harness digital technologies for balanced and sustainable economic growth in an increasingly interconnected global economy.