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1.
以中国用户规模最大短视频平台之一快手头部主播直播带货推广项目的案例和数据分析为基础,构建解释快手直播电商经济底层逻辑的社会学机制模型.提出快手直播电商经济背后的3种社会学机制:关键影响者逻辑、身份认同逻辑和社会网络逻辑.通过LDA文档主题生成模型将快手主播的直播语义字段进行文档主题生成归类,发现情感因素和理性因素词交互影响受众的购买决策,它背后的社会学作用机制是关键影响者逻辑和身份认同逻辑.2020年快手直播电商半年交易额已达1044亿元,理解快手直播背后的影响机制,能够持续优化推广模型,在互联网流量广告领域具有重要的应用价值. 相似文献
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Chih Yuan Woon 《Geopolitics》2018,23(1):67-95
This paper examines the intimate relationship between narratives emanating from China and their uses of Chinese history, and how such perspectives inform China’s geopolitical positioning and practices in lieu of its purported ‘rise’. Taking inspiration from the deconstructive impetus of critical geopolitics, this article contends that these historical claims to China’s rise constitute deterministic accounts, hinging on the notion of Chinese exceptionalism to provide discursive backing for a Sinocentric geopolitical order in the coming decades. This in turn downplays ‘alternative’ historiographies that can shed light on how the nature of China’s emergence may be more dependent on and shaped by the external environment than previously acknowledged. Building on the historical-geographical expositions related to the idea of contingency, this article demonstrates how China (whether it be in the past or present) cannot be seen as operating in a vacuum but has to constantly negotiate and adjust its strategy of engagements/interactions based on the specific demands imposed by world politics. Specifically, by elucidating these dimensions through cross-strait relations between China and Taiwan, it is argued that understanding China’s contingencies can raise important questions for us to critically appreciate the contextual actors, processes and relationships that differentially impact on China’s engagements in the world. 相似文献
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This study examines the impact of board directors with foreign experience (BDFEs) on stock price crash risk. We find that BDFEs help reduce crash risk. This association is robust to a series of robustness checks, including a firm fixed effects model, controlling for possibly omitted variables, and instrumental variable estimations. Moreover, we find that the negative association between BDFEs and crash risk is more pronounced for firms with more agency problems, weaker corporate governance, and less overall transparency. Our findings suggest that the characteristics of board directors matter in determining stock price crash risk. 相似文献
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The Journal of Real Estate Finance and Economics - In the existing housing literature, there has been no academic consensus on how to combine the spatial dependence and the temporal dependence... 相似文献
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Most studies on the predictability of moving average (MA) technical analysis use the discrete (buy/sell) trading recommendations. However, it is possibly incomplete or unreliable to explore the predictability of MA by only employing its generated trading signals. To further explore the forecastability of MA, we study its measurable impact on the stock market returns by using a conventional predictive regression framework. Our empirical study on the US stock market with respect to more detailed price information finds, (i) that the proposed predictor, MADP (MA based on daily prices) shows significant predictability in‐ and out‐of‐sample, and significantly outperforms the historical average (HA) benchmark as well as the MA based on monthly prices, (ii) that the predictability of MADP centers on the short‐term lags (within the most recent 10 days) and disappears when lags are beyond 20 days, and (iii) that the economic evaluation of the portfolios based on trading strategies confirms the superior performance of MADP with short‐term lags against the benchmark even though considering transaction costs. 相似文献
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有关工程建设管理现状的一些思考 总被引:1,自引:1,他引:0
为了促进我国工程建设管理由粗放式向科学化、规范化管理的转变,国家针对影响工程建设管理的几个关键环节,提出了“四制”:为了明确管理主体责任,实行了项目法人负责制;为了引进市场竞争机制,实行了招标投标制;为了实现工程质量全面专业化管理,实行了建设监理制;为了规范工程建 相似文献
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介绍了土卡河水电站可研阶段通过方案比选后确定的工程规模(特征水位、装机容量)。为保证2006年底第一台机组发电,根据目前的施工进度,需要采用围堰挡水发电,文章简要介绍了第一台机组发电的运行方式。 相似文献
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