We examine how social networks shaped by high-speed rail connections influence investor attention and market reactions to earnings announcements in China. Firms in high-centrality cities exhibit stronger immediate and subsequent responses in investor attention, stock price, and trading volume to earnings news. Further analysis shows that earnings-induced local attention predicts future attention spillovers to intercity investors, amplifying both price and volume reactions after announcements. Overall, these findings indicate that high-speed rail networks foster investor social networks that facilitate the dissemination of firm news and help explain predictable patterns in investor behavior and market pricing.

本文利用成都市温江区老年助餐补贴试点街道老年人调查数据，借鉴条件价值法（CVM），提出以老年人受助意愿为基础、按行动能力等级实施差异化补贴，测算了不同行动能力老年人对老年助餐的受助意愿，据此判断当前制定的补贴标准是否适中，以及针对不同行动能力老年人应是否制定差异化补贴标准。研究结果显示：（1）由于忽视了助餐补贴金额选择意愿中当社会支持、健康维护与生活便利等非经济因素对老年群体接受助餐补贴金额意愿的影响，按照当前补贴标准，政府对老年群体助餐补贴整体补贴不足；（2）不同行动能力条件下，老年目标群体对助餐补贴金额的意愿存在显著差异，政府需考虑针对不同行动能力老年群体制定差异化补贴。最后，本文还就研究中存在的一些局限进行了讨论，以期为后续老年助餐补贴标准研究提供启示。

Climate change presents a global threat, prompting nations to adopt low-carbon development pathways to mitigate its potential impacts. However, current research lacks a comprehensive framework capable of integrating multiple variables and providing dynamic optimization capabilities. This article focuses on designing pathways for developing a low-carbon economy to tackle climate challenges. Specifically, we construct a low-carbon economy model that incorporates economic, environmental, social, energy, and policy factors to analyze the drivers of economic growth and carbon emissions. We utilize economic model predictive control and tracking model predictive control to optimize development pathways aligned with various low-carbon targets, creating and validating a comprehensive framework for low-carbon policy design using historical data from China. This study highlights significant advantages in analyzing low-carbon pathways through advanced techniques like hierarchical regression and model predictive control, providing a robust framework that enhances our understanding of causal relationships within the LCE system, captures system feedback, dynamically optimizes pathways, and accommodates diverse policies within a comprehensive low-carbon economy system.

This paper investigates the gambling preference of Chinese investors in the convertible bond (CB) market through a natural experiment—the 2018 amendment of Article 142 of the Company Law. Utilizing CB issuance data from 2016 to 2023, we employ a cohort difference-in-difference approach and find a 4% to 7% increase in IPO premiums for high-repurchase-expectation CBs across various measures. This significant increase indicates that the legal revision reshapes investors’ expectation and adjusts their valuation of CBs. Furthermore, the event-study analysis reveals the escalating impact of legal revision, driven by the herding behavior of gambling investors.

We revisit cross-asset time-series momentum (XTSM) and single-asset time-series momentum (TSM) in China's stock and bond markets. With a fixed-effects model, we find a positive momentum from bonds to stocks and a negative momentum from stocks to bonds, with both momentum persisting for no more than six months. By employing a cross-grouping method, we find that the choice of lookback periods and asset signals impacts the performance of XTSM and TSM. A comparison between XTSM, TSM, and time-series historical (TSH) portfolios reveals that XTSM outperforms in small/midcap stocks and government bonds, while its performance is weak in large-cap stocks and corporate bonds. A spanning test confirms that XTSM generates excess returns that other pricing factors can not explain. XTSM is more prone to momentum crashes. Increased market stress has similarly adverse effects on XTSM and TSM. Furthermore, Market illiquidity, IPO counts, new investor accounts, and consumer confidence index positively correlate with the returns of XTSM and TSM portfolios, while IPO first-day return and turnover rate correlate negatively. The effects of these sentiment indicators exhibit heterogeneity.

This study was conducted to understand better how rules influence China's energy performance; this research on these policies' efficacy that facilitating the transition to sustainable energy sources is of tremendous significance, particularly in light of the severe problems climate change poses. To determine whether or not strict regulations are beneficial to China's energy transition efforts, this research makes use of a substantial amount of data about China's environmental laws and environmental transition policies. This paper thoroughly analyses the impact of strict environmental regulations on various energy transition measures. These metrics include the availability of green energy, carbon emissions, and energy efficiency. The results provide insights into how environmental restrictions have affected China's transition to a different energy source. Policymakers and stakeholders may use this information to build efficient plans to expedite the transition to a low-carbon, renewable energy system in China and abroad.

This paper examines the impact of social distrust on household saving in China using a microsample from the China Family Panel Studies (CFPS). We find that social distrust leads to an increase in savings within households, in which households not living alone, with higher levels of education and urban households are more affected. We also find that social distrust affects household savings through raising risk expectations, reducing credit availability and amplifying risk spillovers from real estate markets.

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To better understand the government’s role in corporate social responsibility (CSR), we use the relocation of local governments in China as an exogenous shock to examine how geographic distance from the government affects corporate charitable donations. The Difference-in-Differences (DiD) analysis indicates that firms reduce charitable donations when local governments move closer. This effect is more pronounced for non-state-owned enterprises and for firms located in cities with lower fiscal pressure. The results remain consistent to a series of robustness tests, including alternative sample specifications, different measures of donations, and various estimation methods. We do not observe a corresponding increase in donations when governments move farther away. Additional analysis indicates that when the government relocates closer, firms may reallocate resources away from traditional charitable donations toward CSR activities that involve more active engagement.

With the digital transformation of the capitalist economy, some contemporary scholars have put forward the Techno-Feudalism narrative of the digital economy. This narrative emphasizes that digital platform enterprises, as emerging market entities in the digital economy, have many practices that are highly similar to those of feudal lords. For example, digital platform enterprises plundering user data is similar to feudal lords plundering land; digital platform enterprises collecting digital rent is similar to feudal lords collecting land rent; digital platform enterprises controlling users and workers is similar to feudal lords controlling slaves. However, this narrative has many theoretical fallacies. Marx's theory of surplus value shows that the above phenomena are essentially still the contemporary form of capital seizing surplus value through technological innovation. The techno-feudalism narrative ignores the internal logic of capital using technological iteration to reconstruct the exploitation mechanism and falls into a superficial misjudgment. In contrast, the Chinese governance practice of digital economy breaks the monopoly of platforms on data elements through the innovation of the separation of three rights of data property rights; promotes fair competition and optimal allocation of resources in the digital economy by strengthening anti-monopoly supervision and promoting the construction of digital infrastructure; proves that the socialist system can break the capital proliferation cycle and achieve "people-centered" development by building a labor rights protection system to promote the creation and sharing of value and transcending the techno-feudalism phenomenon of the digital economy.