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The implementation of new-type infrastructure plays a crucial role in driving low-carbon economic development in China and worldwide. This work employs fixed-effects model, mediated-effects model, spatial Durbin model, and meta-analysis to thoroughly examine the influence of new-type infrastructure on total factor carbon productivity using panel data of 274 Chinese cities spanning from 2011 to 2021. The findings indicate that: firstly, new-type infrastructure has a notable and beneficial impact on total factor carbon productivity, but there is heterogeneity in resource endowment, city scale, and policy intensity. New-type infrastructure can only promote total factor carbon productivity enhancement in non-resource cities and large cities. Under the influence of smart city policies, new-type infrastructure has a stronger effect on total factor carbon productivity enhancement. Secondly, digital finance and marketization are important ways for new-type infrastructure to improve total factor carbon productivity. Thirdly, via spatial spillover effect, new-type infrastructure may boost total factor carbon productivity not only in the local region but also in places that are spatially connected. Accordingly, this paper offers policy recommendations for the government to encourage the investment and development of new-type infrastructure to support total factor carbon productivity growth. • Increasing total factor carbon productivity can achieve a balance between "carbon reduction" and "economic growth". • In the digital age, the construction of new-type infrastructure is crucial. • Quantitative indicators at the city level can provide a more detailed study of issues. • There are direct, indirect and spatial effects of new-type infrastructure on total factor carbon productivity. [ABSTRACT FROM AUTHOR]

Shore power (SP) can provide electricity from the land for ships instead of from ship engines; this approach can eradicate carbon emissions and foster green port development. However, due to the high SP installation cost and high electricity prices faced by shipping operators, the utilization rate of SP is still low. For the government, it is important and urgent to develop an effective policy to promote shore power usage. However, previous studies have not compared the effects of different government policies and have ignored the differences in SP usage stages. Therefore, in this study, three kinds of policies, subsidy, carbon tax and shipper green awareness improvement, are taken into consideration. The SP usage process is divided into two stages, namely, stimulating ship retrofitting for SP in the short term and sustaining SP usage in the long run. The purpose of this study is to provide policy-selection suggestions for short- and long-term SP promotion. Considering shipping supply chain competition, game theory is applied, and a series of Nash game models are formulated to investigate the equilibrium strategies of shipping operators on SP usage under different policies. A comparison of the results reveals that in the short run, the subsidy policy is superior to the carbon tax policy when both can promote SP usage. However, a moderate carbon tax is able to remedy the failure of subsidies. In the long run, a carbon tax may promote SP at the cost of diminishing social welfare. Improving shipper green awareness is more likely to be a preferable choice for both SP usage and social welfare. This paper also analyses the impacts of scale-based port congestion and green awareness. These findings can provide valuable suggestions for government and shipping operators to promote SP usage, reduce emissions and achieve the goal of green port construction. [Display omitted] • Explore policy selection to promote shore power usage in the short and long run. • Compare multiple policies and analyze their impacts on stakeholders' decisions. • Consider the shore power usage promotion and social welfare when selecting policy. • Study the impacts of port congestion and green awareness with scale effect. [ABSTRACT FROM AUTHOR]

Textile waste presents significant environmental risks for the textile and apparel (T&A) industry; however, most textiles can be recycled, enabling the remanufacturing of energy and fiber for resale in the secondary market. In this regard, the importance of a Government Fund Policy (GFP) has been emphasized to promote recycling and remanufacturing efforts aimed at establishing T&A closed-loop supply chains (CLSCs). Simultaneously, blockchain technology and green-product design have transformed T&A brand marketing dynamics due to their crucial roles in enhancing brand trust and increasing market demand. Nevertheless, there is limited research dedicated to examine the interactive effects of GFP and blockchain technology within T&A supply chains. This paper proposes a stylized CLSC game involving a T&A manufacturer and a retailer. The manufacturer sells new and remanufactured T&A products to the retailer while determining green-product design efforts (i.e., green degree). The retailer determines selling prices but incurs usage costs associated with adopting blockchain technology. Through equilibrium analyses, we find that the simultaneous implementation of GFP and blockchain technology can incentivize T&A manufacturers to enhance the green degree of their products, thereby improving brand trust and market demand. All supply chain agents can benefit from adopting blockchain technology as long as its usage cost is below a threshold level, regardless of whether GFP is implemented or not. Similarly, irrespective of whether blockchain technology is adopted or not, if the ratio between remanufacturing subsidies and environmental taxes exceeds a specific threshold value, GFP will serve as an incentive for sustainability efforts among T&A firms while providing them with greater advantages. Additionally, the simultaneous implementation of GFP and blockchain technology holds significant potential for mitigating environmental pollution, i.e., by carefully selecting appropriate degrees of GFP and blockchain technology parameters, a mutually beneficial outcome can be achieved for T&A firms, consumers, and the environment. These findings have important implications for T&A supply chain managers seeking to optimize CLSCs while integrating blockchain technology. Furthermore, they provide valuable insights into government strategies for implementing GFPs. • The optimal blockchain introduction strategy in a textile and apparel closed-loop supply chain (T&A-CLSC) is investigated. • The interaction of government fund policy and T&A-CLSC firms' blockchain introduction decisions is investigated. • Blockchain and government fund policy could encourage firms to heighten brand goodwill, and expand more potential demands. • An "all-win" situation for T&A-CLSC, consumers, and society can be achieved under certain conditions. [ABSTRACT FROM AUTHOR]