科研成果

Forthcoming
Li S. Muddling Through an Infodemic: ICT Acceptance and Utilization Under the COVID-19 Health Crisis. In: Editors: Shengnan Yang, Xiaohua Zhu, and Pnina Fichman. The Usage and Impact of ICTs during the Covid-19 Pandemic. Routledge; Forthcoming.
Wu C-Y. “Obey…for the Common Good”: Building a Sense of Community in the Bakers’ Strike Edict, in Community and Communication in Classical Antiquity:第13届中日韩三国欧洲古代史学术研讨会,2024 年 10 月 17-20 日. Fudan University, Shanghai; Forthcoming.Abstract
This paper discusses the so-called Bakers’ Strike Edict from Ephesus  (Ephesos 231 = IK 12.215 p. 27) in light of recent studies on  the Roman imperial toolkit to build empire-wide communities. Clifford Ando and Myles Lavan argued that Roman emperors in the first two centuries CE were consciously blurring distinctions between Roman and non-Roman populations, so that there could be a shared sense of an empire-wide community among people in the provinces.  This paper argues that, in addition to Lavan’s observations, gubernatorial edicts also show concerns and measures that sought to communicate a sense of the communal at the local level. While the focus of discussion is on the edict responding to a bakers’ strike at Ephesus, several other examples from a corpus of gubernatorial edicts are also used in connection with this example. This paper hopes to contribute to Ando’s and Lavan’s arguments by pointing to a lower register of community building visible in gubernatorial edicts. The governors’ concerns for and efforts to creating communal cohesion and their need to balance parallel and at times competing “common goods” not only adds another nuance to the grander community building project at the imperial level, but demonstrates further complications on how praesidial governors – and in particular proconsuls – can and would react to difficult issues at the local level.
Huang W, Pan Y, Zhou Y. One-Child Policy, Marriage Distortion, and Welfare Loss. Review of Economics and Statistics [Internet]. Forthcoming. 访问链接Abstract
We investigate how exposure to the One-Child Policy (OCP) during early adulthood affects marriage and fertility in China. Exploring fertility penalties across provinces over time and the different implementations by ethnicity, we show that the OCP significantly increases the unmarried rate among the Han ethnicity but not among the minorities. The OCP increases Han-minority marriages in regions where Han-minority couples are allowed for an additional child, but the impact is smaller in other regions. Finally, the deadweight loss caused by lower fertility accounts for 10 percent of annual household incomes, and policy-induced fewer marriages contribute to 30 percent of the fertility decline.
Li B, Xing Z, Wu Z. Optimally biased contests with draws. Economic Letters. Forthcoming;226.
Liu S, Zhao* C, Wu L. Order Types and Natural Price Change: Model and Empirical Study of the Chinese Market. International Journal of Financial Engineering. Forthcoming.Abstract
Order type plays an important role in algorithmic trading and is a key factor of price impact. In this paper, we propose a new framework for studying the discrete price change process, which focuses on the impacts of aggressive orders (market orders and aggressive limit orders) and cancellations. The price change process is driven by states and events of best quotes, and we define the event-based price change as the "natural price change" (NPC). Under the framework, we propose a heteroscedastic linear econometric model for the NPC to explore the impact of different types of orders on the price dynamics. To verify the usability of our model and explore the driving factors of price dynamics, we conduct a thorough empirical analysis for 786 large-tick stocks traded on the Shenzhen Stock Exchange. Empirical results statistically demonstrate that aggressive orders can introduce stronger impact on the NPC than cancellations. Meanwhile, splitting a big order into several small orders can lead to a larger NPC. Our framework can also be applied for the prediction of price change.
Lo AW, Zhang R, Zhao* C. Performance of Impact Portfolios Toward Carbon Neutrality. The Journal of Impact and ESG Investing [Internet]. Forthcoming. 获奖网址
Cao S, Li B, Zhang C, etc. Pipeline for characterizing alternative mechanisms (PCAM) based on bi- clustering to study colorectal cancer heterogeneity. Computational and Structural Biotechnology Journal. Forthcoming.
Conesa JC, Li B, Li Q. A Quantitative Evaluation of Universal Basic Income. Journal of Public Economics. Forthcoming.
Lu P, Li B. Simulating Rise and Fall Cycles of Vietnam Empires. Fundamental Research. Forthcoming.
Wu C-Y. Sinope's Changing Epochs: a Colony's Adaptation to a Common Paphlagonian Past., in 2025 AIA/SCS Joint Annual Meeting, January 2nd to January 5th, 2025. Philadelphia, PA, USA; Forthcoming. 访问链接Abstract
A few colonies in the Latin West (Augusta Emerita, Johnston 2017: 56-57 fn. 202-203; Abascal 2002: 284) and the Greek East (e.g. Philippi AE 1932, 21; briefly Samos IG XII,6 1:187 l. 8-11) used the annus coloniae, the year when the colony was founded, as their standard time-reckoning formula on inscriptions and perhaps other media as well. The list may include the Roman colony of Sinope, which coin issues carried legends such as C(olonia) F(elix) I(ulia) an(no) followed by (and later on simply with) Latin numerals (e.g. RPC I 2110, II 715). Curiously, since the 17th century, numismatists have observed two epochs on Sinope’s Roman period issues (e.g. Hardouin 1689: 140). There was the epoch of 45 BCE, likely the annus coloniae (e.g. RPC III 1229), as it coincided with reports of a Caesarian colony (Strab. 12.3.11). Then there was the epoch of 70 BCE (e.g. RPC VI 6501), seemingly replacing the earlier epoch, but only from the early third century onwards (Kubitschek 1908: 68-71; Magie 1950: 342 no. 42).  Changing epochs was not a rare phenomenon in Anatolia, but known examples changed an earlier epoch for a later one, apparently to adapt to new circumstances, such as an imperial victory or visit (Leschhorn 1993: 439-541), and count years from a new beginning. Sinope, however, changed the epoch that was supposedly linked to the year of its colonial foundation to an earlier epoch that coincided with Lucullus’ “liberation” of Sinope from Mithridatid control. This suggests that Sinope was adapting to new circumstances that required the adaptation of an historical epoch. It is not the beginning per se, but a recaliberation of municipal history. While historical developments of Roman Sinope is not well documented in extant literary sources, and epigraphic evidence is scarce, this paper wishes to take two approaches to assess the problem of Sinope’s changing epochs. The first approach is to consider Sinope’s time-reckoning tradition. The era system that was prevalent in northern Anatolia and elsewhere during the first three centuries CE had a strong Hellenistic tradition. In this view, there may be more nuance – 45 BCE can be the annus coloniae, but it was reflecting a recent change in the city’s history, not an overhaul of the city’s established time-reckoning system, perhaps based on the Seleucid era (found on ceramic stamps, Saprykin & Fedoseev 1999: 135-143). This approach removes the Roman symbolism attached to the 45 BCE, and opens up additional possibilities for interpretation. The second approach considers the epoch of 70 BCE regionally. This epoch was primarily used at Amastris, but also attested at Abonuteichos. Both cities were described by Roman authors as prosperous in their own ways (e.g. Luc. Alex. 9, 25; Plin. Ep. 10.98). Both cities also began to issue 3 to 4 units of local bronze coinage from the reign of Trajan onwards, including the 6-assaria, associated with economic prosperity (Zajac 2023: 30-32, Tab. 1a). Epigraphic and numismatic evidence further suggest that Amastrians were mobile across the Black Sea and the Aegean, some even serving as koinon officials of Bithynian and other regional koina (Marek 2003: 63-67). There is the possibility that Sinope changed its epoch to adhere to regional time-reckoning norms set by more dominant peers. Since the 17th century, numismatists have observed two epochs on Sinope’s Roman period coin issues (e.g. Hardouin 1689: 140). There was the epoch of 45 BCE, perhaps the annus coloniae (e.g. RPC III 1229; cf. Augusta Emerita, Johnston 2017: 56-57 fn. 202-203; Abascal 2002: 284; Philippi AE 1932, 21; briefly Samos IG XII,6 1:187 l. 8-11), as it coincided with reports of a Caesarian colony (Strab. 12.3.11). Then there was the epoch of 70 BCE (e.g. RPC VI 6501), seemingly replacing the earlier epoch, but only from the early third century onwards (Kubitschek 1908: 68-71; Magie 1950: 342 no. 42). Neither changing epochs or the use of many epochs were rare phenomena. That said, known examples show cities replacing old epochs with those that commemorate new events and circumstances (Leschhorn 1993: 439-541). It is then odd for Sinope to abandon the epoch commemorating its colonial foundation in favor of an epoch 25 years earlier. Why? Leschhorn gave two potential scenarios: perhaps 70 BCE was the outcome a pro-Severan party defeating the old guard, or there was a “Gräzisierung" movement under which Sinope opted for a symbolically more acceptable epoch (Leschhorn 1993: 162), but these suggestions are limited by lack of evidence. This paper reassesses Sinope’s changing epochs with two approaches. First is a reframing of the Leschhorn’s assumed constitutional symbolism attached to the epoch of 45 BCE that leads to factionalism, and the “Roman” nature of Sinope’s so-called Kolonieära in Leschhorn’s alternative “Gräzisierung” thesis. The question asked here is whether Sinope had an established era system in place as part of its Hellenistic past. Sinope likely used the Pontic era while under Mithridatid control (Leschhorn 1993: 150). Recent discussions of stamped amphorae further indicates that the Seleucid era system was likely present if not also used at Sinope (Saprykin & Fedoseev 1999: 135-143). Further, we now have ceramic tiles time-stamped with a formula such as "s(aeculo) S(inopensis) (colonia) i(nducta) an(no) IV" (Fedoseev 2019: 16-17). If Fedoseev’s reading of the time-stamp is correct, we may consider the possibility that the saeculum Sinopensis was a system that could have accommodated multiple epochs, and the phenomenon in question was a symptom of an entrenched but adaptative time-reckoning mechanism at work. The second approach considers the epoch of 70 BCE regionally. This epoch was primarily used at Amastris, but also attested at Abonuteichos. Both cities were described by Roman authors as prosperous in their own ways (e.g. Luc. Alex. 9, 25; Plin. Ep. 10.98). Both cities also began to issue 3 to 4 units of local bronze coinage from the reign of Trajan onwards, including the 6-assaria, associated with economic prosperity (Zajac 2023: 30-32, Tab. 1a). Epigraphic and numismatic evidence further suggest that Amastrians were mobile across the Black Sea and the Aegean, some even serving as koinon officials of Bithynian and other regional koina (Marek 2003: 63-67). There is the possibility that Sinope changed its epoch to adhere to regional time-reckoning norms set by more dominant peers.
Hynes K, Ma J, Yuan C. Transport Infrastructure Investments and Competition for FDI. Scottish Journal of Political Economy [Internet]. Forthcoming. 访问链接
国内市场一体化与企业出口行为——基于市场可达性视角的研究. 经济学(季刊). Forthcoming.
李成明, 王霄, 李博. 城市智能化、居民劳动供给与包容性就业———来自准自然实验的证据. 经济与管理研究. Forthcoming.
姜富伟, 孟令超, 唐国豪. 媒体文本情绪与股票回报预测. 经济学(季刊). Forthcoming.Abstract
本文探究了财经媒体新闻文本情绪与股票市场之间的关联。我们综合Loughran and MacDonald(2011)词典、word2vec算法和人工筛选等方法构建了中文金融文本情感词典,然后用该词典提取了中国股票市场的媒体文本情绪。我们发现媒体文本情绪可以很好地衡量我国股票市场投资者情绪的变化,该指标在样本内和样本外都对股票回报具有显著的预测能力。这一指标的预测能力强于常用的宏观经济指标或历史均值预测。此外,文本情绪指标对一些宏观经济指标也有显著的预测能力。
完整论文列表详见:https://scholar.google.com/citations?user=C55sNE8AAAAJ&hl=zh-CN. [Internet]. Forthcoming. 访问链接
开发区政策与技术创新:来自专利数据的证据. 经济学(季刊). Forthcoming.
段德敏、张开. 殖民扩张、种族主义与民主——托克维尔的“另一个美国”. 政治学研究. Forthcoming.
林蕙, 张鹏翼, 李世娟*. 社交平台中癌症患者及其家属的健康信息自我表露研究——以新浪微博肺癌超话为例. 情报科学 (排版中). Forthcoming.
李力行, 申广军. 金融发展与城市规模——理论和来自中国城市的证据. 经济学(季刊). Forthcoming;18(3).
段德敏、张开. 马基雅维利政治思想中的“永恒共和国”问题. 云南大学学报 社会科学版. Forthcoming.

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