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current status data family study gaussian copula relative efficiency response-dependent sampling robustness second-order estimating equations

Time-to-event data are right-truncated if only individuals who have experienced the event by a certain time can be included in the sample. For example, we may be interested in estimating the distribution of time from onset of...

Coronavirus disease cox regression failure time identifiability relative efficiency right-truncation Survival Analysis Bias covid-19 Data Interpretation Statistical Humans Models Statistical Survival Analysis

Environmental protection policy is a widely discussed issue in scientific works. However, special attention should be also paid to the effectiveness of expenditures on environmental protection, and this is the main goal...

environmental protection expenditures DEA methodology relative efficiency EU environmental policy