填满
发表于 2025-3-23 13:43:02
Competing Risks Model,A competing risks model is a model for multiple durations that start at the same point in time for a given subject, where the subject is observed until the first duration is completed and one also observes which of the multiple durations is completed first.
注入
发表于 2025-3-23 16:01:29
Difference-in-Difference Estimators,Difference-in-differences (DID) estimators are often used in empirical research in economics to evaluate the effects of public interventions and other treatments of interest in the absence of purely experimental data.
overweight
发表于 2025-3-23 18:22:38
Exchangeability, A sequence . = (.,…,.) of random variables (for . ≥ 1) is (.) . if the joint probability distribution .(.,…,.) of the elements of . is invariant under permutation of the indices (1,…,.), and a countably infinite sequence (.,…,., …) is (.) . if every finite subsequence is finitely exchangeable.
草率男
发表于 2025-3-23 23:09:16
Natural Experiments and Quasi-Natural Experiments,The term ‘natural experiment’ has been used in many, often, contradictory, ways. It is not unfair to say that the term is frequently employed to describe situations that are neither ‘natural’ nor ‘experiments’ or situations which are ‘natural, but not experiments’ or vice versa.
Glossy
发表于 2025-3-24 05:23:15
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大方不好
发表于 2025-3-24 07:00:13
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Cpr951
发表于 2025-3-24 11:40:07
Badi H. Baltagid the contemporary structure of society as an information society or a knowledge society. Common access to information resources and participation in their acquisition affects the use of knowledge resources in industrial systems. The development of the information society determines the availability
epidermis
发表于 2025-3-24 18:35:59
Jean-Marie Dufour,Cheng Hsiaolt of rapid urbanization and lead to economic benefit in order to secure better income and ease of mobility access. Cities are indeed engines for new jobs and could be able to provide safer and proper movement of peoples and goods. Recently many of developing countries are taking in to consideration
Morsel
发表于 2025-3-24 20:39:08
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解脱
发表于 2025-3-25 01:39:28
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