Huyen Nguyen

Since the outbreak of the Coronavirus disease 2019 (Covid-19), tremendous efforts have been made by scientists, health professionals, business people, politicians, and laypeople around the world. Covid-19 vaccines are one of the most crucial innovations that help fight against the virus. This paper attempts to revisit the Covid-19 vaccines production process by employing the serendipity-mindsponge-3D creativity management theory. Vaccine production can be considered an information process and classified into three main stages. The first stage involved the processes of absorbing information (e.g., digital data and open science) and rejecting unhelpful information (e.g., misinformation and fake news) for effectively acquiring useful insights. Useful insights were later employed by experts, enterprises, governments, and international organizations through interdisciplinary coordinated efforts for developing vaccines within a short period. Finally, the appearance of multiple types of vaccines enabled more strategic options for vaccine distribution and administration. Findings from this vaccine creativity management process could be used as critical lessons for further improvements of vaccination programs.

Circular economy (CE), a sustainability concept that promotes resource efficiency and waste re-duction, has garnered significant popularity in recent years due to its potential to address pressing environmental and economic challenges. This study develops the Bayesian Mindsponge Mindspongeconomics (BMM) framework/analytic method based on Bayesian Mindsponge framework (BMF) to the factors influencing young adults' pro-environmental behavior and purchases of green products at different price levels. The findings indicate that young adults who are knowledgeable about CE and value environmental protection and energy conservation are more likely to engage in waste sorting, while the factors that affect their willingness to pay (WTP) more for green and en-ergy-saving products vary at different price tiers. The study demonstrates that CE knowledge, daily waste sorting habits, and environmental concern positively impact young adults' WTP for products that are 5%, 10%, and 15% higher-priced, respectively. Besides, the study also highlights the po-tential of educational programs and cultural influences in nurturing a generation that prioritizes environmental value. The research integrates multidisciplinary perspectives and offers practical implications for policymakers, educators, and businesses seeking to promote green literacy and foster an environmental culture among the youth, contributing to the broader goals of green transformation and sustainable development associated with CE and green economy, especially in urban areas of emerging countries and beyond.