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Are two subjects better than one? : the effects of developmental English courses on language minority and native English-speaking students' community college outcomes
Hodara, Michelle; Xu, Di - In: Economics of education review 66 (2018), pp. 1-13
Persistent link: https://ebvufind01.dmz1.zbw.eu/10012002871
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Gender achievement gaps among Chinese middle school students and the role of teachers' gender
Xu, Di; Li, Qiujie - In: Economics of education review 67 (2018), pp. 82-93
Persistent link: https://ebvufind01.dmz1.zbw.eu/10012003323
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The impact of low-ability peers on cognitive and noncognitive outcomes : random assignment evidence on the effects and operating channels
Xu, Di; Zhang, Qing; Zhou, Xuehan - In: Journal of human resources : JHR 57 (2022) 2, pp. 555-596
Persistent link: https://ebvufind01.dmz1.zbw.eu/10013433275
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Does contractual form matter? : the impact of different types of non-tenure-track faculty on college students' academic outcomes
Ran, Florence Xiaotao; Xu, Di - In: Journal of human resources : JHR 54 (2019) 4, pp. 1081-1120
Persistent link: https://ebvufind01.dmz1.zbw.eu/10012198046
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The impact of online learning on students’ course outcomes: Evidence from a large community and technical college system
Xu, Di; Jaggars, Shanna Smith - In: Economics of Education Review 37 (2013) C, pp. 46-57
Using a large administrative dataset from a statewide system including 34 community and technical colleges, the authors employed an instrumental variable technique to estimate the impact of online versus face-to-face course delivery on student course performance. The travel distance between each...
Persistent link: https://ebvufind01.dmz1.zbw.eu/10011049033
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Poissonian potential measures for Lévy risk models
Landriault, David; Li, Bin; Wong, Jeff T. Y.; Xu, Di - In: Insurance / Mathematics & economics 82 (2018), pp. 152-166
Persistent link: https://ebvufind01.dmz1.zbw.eu/10011929861
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A note on the convexity of ruin probabilities
Landriault, David; Li, Bin; Loke, Sooie-Hoe; Willmot, … - In: Insurance / Mathematics & economics 74 (2017), pp. 1-6
Persistent link: https://ebvufind01.dmz1.zbw.eu/10011712328
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A Note on the Convexity of Ruin Probabilities
Landriault, David - 2017
Conditions for the convexity of compound geometric tails and compound geometric convolution tails are established. The results are then applied to analyze the convexity of the ruin probability and the Laplace transform of the time to ruin in the classical compound Poisson risk model with and...
Persistent link: https://ebvufind01.dmz1.zbw.eu/10012962574
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On the distribution of classic and some exotic ruin times
Landriault, David; Li, Bin; Shi, Tianxiang; Xu, Di - In: Insurance / Mathematics & economics 89 (2019), pp. 38-45
Persistent link: https://ebvufind01.dmz1.zbw.eu/10012133504
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Market diffusion for upgrade products on the base of CAS theory
Wang, Qiuping; Xu, Di - In: International journal of networking and virtual … 9 (2011) 3, pp. 283-299
Persistent link: https://ebvufind01.dmz1.zbw.eu/10009379794