技术嵌入与数字化商业模式创新——基于飞贷金融科技的案例研究

随着数字技术的快速发展,数字化商业模式创新成为企业竞争的利器,而技术嵌入是企业内化数字技术支撑数字化商业模式创新的重要策略.本文基于飞贷金融科技的创新实践开展纵向案例研究,探究技术嵌入对数字化商业模式创新的影响.研究发现:技术嵌入包含技术整合和技术开发,两种策略在企业发展过程中经历了不同形式的演变.其中,拼凑式技术整合更有利于商业模式要素创新,而协奏式技术整合更有利于商业模式架构创新.利用式技术开发更有利于商业模式渐进创新,而探索式技术开发更有利于商业模式颠覆创新.最终,案例企业的数字化商业模式呈现出一条"流程信息化→渠道平台化→产品数字化→技术产品化"的进阶式演化路径,数字化程度相应呈现"类抛物线"的演变规律.本研究丰富了数字化商业模式创新的相关理论,并为科技型企业构建数字化商业模式提供了实践启示.     

What is Integration? A Comparative View from Immigrants and Municipal Policy

The ongoing project of citizenship construction in societies receiving international immigration demands a perspective that takes into account the interests, views and needs of all socio-demographic groups, including those of newcomers as potential new citizens. We interviewed representatives of 16 immigrant associations operating in the Spanish autonomous community of Galicia, reviewed immigration policy in 13 Spanish (Galician) municipalities, and interviewed 20 municipal government staff members who put these into practice. With this research, we aim to explore the perspectives of immigrants with respect to their own integration and to examine how these compare with local policies designed to facilitate these processes. By comparing the immigrant representatives' perceptions with local policy discourses and practice, our study reveals how local integration practice is not only inconsistent with its own policy discourse but also fails to consider and include immigrants' own understandings of what integration means and how it can be achieved.     

案例行动学习法——效率与效果的兼顾

案例教学法、行动学习法等主流商科情境教学模式虽在国内商学院中得到广泛的应用,但囿于使用过程中的资源限制、实施变形及方法本身的局限性,导致教学双方的反馈尚不尽如人意。本文介绍了一种全新的商科情境教学方法--"案例行动学习法"。论文应用建构主义理论探讨了"案例行动学习法"的基本原理,研究了该种方法的能力建构机理,分析了其成为工商管理主流情境教学方法的效率与效果的平衡机理,介绍了前期应用的效果。研究结果表明,"案例行动学习法"作为一种全新的工商管理情境教学方法,能够将案例教学与行动学习两种方法的优点有机结合在一起,具备在全国范围内推广的条件。     

Inferences for a Partially Varying Coefficient Model With Endogenous Regressors

In this article, we propose a new class of semiparametric instrumental variable models with partially varying coefficients, in which the structural function has a partially linear form and the impact of endogenous structural variables can vary over different levels of some exogenous variables. We propose a three-step estimation procedure to estimate both functional and constant coefficients. The consistency and asymptotic normality of these proposed estimators are established. Moreover, a generalized F-test is developed to test whether the functional coefficients are of particular parametric forms with some underlying economic intuitions, and furthermore, the limiting distribution of the proposed generalized F-test statistic under the null hypothesis is established. Finally, we illustrate the finite sample performance of our approach with simulations and two real data examples in economics.     

Differences in Child Health Across Rural,Urban, and Slum Areas: Evidence From India

The developing world is rapidly urbanizing, but an understanding of how child health differs across urban and rural areas is lacking. We examine the association between area of residence and child health in India, focusing on composition and selection effects. Simple height-for-age averages show that rural Indian children have the poorest health and urban children have the best, with slum children in between. With wealth or observed health environment held constant, the urban height-for-age advantage disappears, and slum children fare significantly worse than their rural counterparts. Hence, differences in composition across areas mask a substantial negative association between living in slums and height-for-age. This association is more negative for girls than boys. Furthermore, a large number of girls are “missing” in slums; we argue that this implies that the negative association between living in slums and health is even stronger than our estimate. The missing girls also help explain why slum girls appear to have a substantially lower mortality than rural girls, whereas slum boys have a higher mortality risk than rural boys. We estimate that slum conditions (such as overcrowding and open sewers), which the survey does not adequately capture, are associated with 20 % to 37 % of slum children’s stunting risk.     

Does Remittance Outflow Stimulate or Retard Economic Growth?

This article evaluates the association between remittance outflow (RMO) and economic growth in the Gulf Cooperation Council (GCC) countries. The results of this evaluation indicate that RMO Granger creates gross domestic product (GDP) per capita in three countries, namely, Bahrain, Oman and Saudi Arabia. Similarly, the results for causality from GDP per capita to RMO are significant for four countries, namely, Bahrain, Kuwait, Qatar, and Saudi Arabia. The findings differ from those of the household consumption model, stating that higher RMO will decrease economic activity. GDP per capita is the main determinant of RMO, suggesting that economic growth promises and encourages continuous RMO and vice versa. The adverse impact of RMO can be minimized by encouraging the local population to be productive in the private sector, as local productivity will reduce the huge influx of foreign workers and provide valuable local investment opportunities to lessen the amount being remitted.     

Association between sexually explicit messages and sleep health among French sexual minority men

It has been demonstrated that sexual minority men (SMM) participate in sexting. While research has shown that engagement in the exchange of sexually explicit media is associated with poor health outcomes, no previous research has investigated its association with sleep health outcomes. This study sought to examine the association between sexually explicit media and sleep health among SMM, a population that suffers from poor sleep health. A popular geosocial networking application was used to recruit SMM individuals (N?=?580) in the Paris, France, metropolitan area. Multivariate analyses, adjusting for sociodemographics, were used to test the association between the frequency of sexually explicit messaging and three dimensions of sleep health: (1) sleep quality, (2) sleep duration, and (3) two aspects of sleep problems. In multivariate analyses, those who reported engaging in sexually explicit messaging more were more likely to report getting less than seven?hours of sleep (aRR = 1.24; 95% CI = 1.08, 1.43) compared with those who reported engaging in sexually explicit messaging less. No significant associations were found between sexting and sleep quality or reporting sleep problems. Sexually explicit messaging was associated with shorter sleep duration. Intervention targeted at individuals who sext could potentially improve sleep health outcomes.     

The Economic Assimilation of African Immigrants in the United States

This article examines the puzzle that the earnings of African immigrants do not match their high qualifications in terms of educational attainment. We apply cohort analysis to compare the economic assimilation patterns of black African immigrants with that of black non‐African immigrants. We find results that are consistent with the idea that the lower earnings of African immigrants are due to greater difficulty with skill transferability. Africans face substantially lower earnings at entry than black natives and black non‐African immigrants, although they close a substantial part of the initial earnings gap over time. Moreover, the earnings gap at entry has narrowed for recent cohorts; and Africans who migrate during childhood and those with no college education face no disadvantage. We also find similar patterns of assimilation in labour supply and participation in welfare programmes, which indicate that Africans face greater challenges at entry but assimilate at a faster rate.     

BAN网络节点低功耗MAC协议的设计

本文针对IEEE802.15.6标准中的MAC层协议采用固定保护时间弥补时钟漂移而造成能量浪费这一问题研究并实现一种低功耗的适宜BAN网络的MAC协议。该协议依据超帧结构的模式构建了一种新的MAC帧结构模型,并结合时间补偿算法对帧结构中的保护时间进行自适应调整,最后使用OPNET14.5仿真两种MAC协议。结果表明,本文研究的基于自适应时间补偿帧结构的MAC协议相对于固定的保护时间IEEE802.15.6的MAC协议而言,降低了终端节点能耗以及延长了网络的生存周期。