0000000000240116
AUTHOR
Constantin Weiser
showing 5 related works from this author
Covid-19 in Deutschland – Erklärung, Prognose und Einfluss gesundheitspolitischer Maßnahmen
2020
Zusammenfassung Die Autoren erklären den bisherigen Verlauf von Covid-19 in Deutschland durch Regressionsanalysen und epidemiologische Modelle. Sie beschreiben und quantifizieren den Effekt der gesundheitspolitischen Maßnahmen (GPM), die bis zum 19. April in Kraft waren. Sie berechnen den erwarteten Verlauf der Covid-19-Epidemie in Deutschland, wenn es diese Maßnahmen nicht gegeben hätte, und zeigen, dass die GPM einen erheblichen Beitrag zur Reduktion der Infektionszahlen geleistet haben. Die seit 20. April gelockerten GPM sind zwischen den Bundesländern relativ heterogen, was ein Glücksfall für die Wissenschaft ist. Mittels einer Analyse dieser Heterogenität kann aufgedeckt werden, welche…
Should Contact Bans Have Been Lifted More in Germany?
2020
Abstract Many countries consider the lifting of restrictions of social contacts (RSC). We quantify the effects of RSC for Germany. We initially employ a purely statistical approach to predicting prevalence of Covid-19 if RSC had been upheld after 20 April. We employ these findings and feed them into our theoretical model. We find that the peak of the number of sick individuals would have been reached already end of April. The number of sick individuals would have fallen below 1000 at the beginning of July. If restrictions had been lifted completely on April 20, the number of sick should have risen quickly again from around 27 April. A balance between economic and individual costs of RSC and…
An empirical test of marginal productivity theory
2014
We explore an hitherto unused approach to testing marginal productivity theory. Our method rests on the simple idea that, under the assumption of a linear homogeneous production function, residual profits are informative about the discrepancies between factor payments and marginal products. Our empirical application using data on manufacturing plants in Chile suggest moderate deviations from marginal productivity theory which depend on firm size.
Should contact bans be lifted in Germany? A quantitative prediction of its effects
2020
Many countries consider the lifting of restrictions of social contacts (RSC). We quantify the effects of RSC for Germany. We initially employ a purely statistical approach to predicting prevalence of COVID19 if RSC were upheld after April 20. We employ these findings and feed them into our theoretical model. We find that the peak of the number of sick individuals would be reached already mid April. The number of sick individuals would fall below 1,000 at the beginning of July. When restrictions are lifted completely on April 20, the number of sick should rise quickly again from around April 27. A balance between economic and individual costs of RSC and public health objectives consists in l…
How feedback provided by voluntary electronic quizzes affects learning outcomes of university students in large classes
2018
Abstract In view of the increasing number of university students attending large statistics classes as a requirement for their degree courses, the use of an online learning environment is indispensable for delivering immediate and frequent feedback. However, results of research on the value of technological tools and blended courses in various academic disciplines are not consistent and only point to minimal effects on academic achievement. To fill this gap, in this study, participation in optional electronic quizzes and its effects on exam grades in large statistics classes depending on gender and previous statistics- and mathematics-related abilities are investigated. Overall, participati…