Most nations have responded to the COVID-19 pandemic by locking down parts of their economies to reduce infectious spread. The optimal timing of the beginning and end of the lockdown, together with its intensity, is determined by the tradeoff between economic losses and improved health outcomes....

Die Autorinnen fragen nach den Inhalten und Formen von Wissen über Raum und Raumentwicklung für die große Transformation sowie nach den Bedingungen für dessen Produktion und Verbreitung. Vor dem Hintergrund der frühen Debatten um nachhaltige Raumentwicklung werden die Hemmnisse und...

Die Autorinnen fragen nach den Inhalten und Formen von Wissen über Raum und Raumentwicklung für die große Transformation sowie nach den Bedingungen für dessen Produktion und Verbreitung. Vor dem Hintergrund der frühen Debatten um nachhaltige Raumentwicklung werden die Hemmnisse und...

In den letzten Jahren wurden die Ganztagsangebote an den weiterführenden Schulen stark aus-gebaut. Lag der Anteil der Ganztagsschüler in der Sekundarstufe 1 im Schuljahr 2003/2004 noch bei nur 12,3 Prozent, war er im Schuljahr 2008/2009 mit 26,0 Prozent bereits mehr als doppelt und im...

Controlling for time fixed effects in analyses on longitudinal data by means of timedummy variables has long been a standard tool in every applied econometrician's toolbox. In order to obtain unbiased estimates, time fixed effects are typically put forward to control for macroeconomic shocks and...

Controlling for time fixed effects in analyses on longitudinal data by means of timedummy variables has long been a standard tool in every applied econometrician's toolbox. In order to obtain unbiased estimates, time fixed effects are typically put forward to control for macroeconomic shocks and...

In den letzten Jahren wurden die Ganztagsangebote an den weiterführenden Schulen stark aus-gebaut. Lag der Anteil der Ganztagsschüler in der Sekundarstufe 1 im Schuljahr 2003/2004 noch bei nur 12,3 Prozent, war er im Schuljahr 2008/2009 mit 26,0 Prozent bereits mehr als doppelt und im...

Stadtplanungsprozesse bewegen sich im Wirkungsverhältnis sich ständig ändernder globaler, regionaler und lokaler Dynamiken. Prozesse daher aus der zeitlichen Perspektive zu betrachten, kann ein Schlüssel zum Verständnis dieser komplexen Sinnzusammenhänge sein. Obgleich in der...

The paper presents a modification of the matching and difference-in-differences approach of Heckman et al. (1998) and its Stata implementation, the command flexpaneldid. The approach is particularly useful for causal analysis of treatments with varying start dates and varying treatment durations...

While several studies suggest that stress-related mental health problems among school children are related to specific elements of schooling, empirical evidence on this causal relationship is scarce. We examine a German schooling reform that increased weekly instruction time and study its...

While several studies suggest that stress-related mental health problems among school children are related to specific elements of schooling, empirical evidence on this causal relationship is scarce. We examine a German schooling reform that increased weekly instruction time and study its...

The European Union has recently decided to stop the policy of biannual clock changes in 2021. One reason is that the original rationale for the policy, energy savings, is not supported by a large portion of recent empirical studies. Whether the new permanent time will be standard time or the...

People rely on their experiences when making important decisions. In making these decisions, individuals may be significantly influenced by the timing of their experiences. Using administrative data, we study whether the order in which students are assigned courses affects the choice of college...

People rely on their experiences when making important decisions. In making these decisions, individuals may be significantly influenced by the timing of their experiences. Using administrative data, we study whether the order in which students are assigned courses affects the choice of college...

The purpose of this study is to examine the volatility-timing performance of Singapore-based funds under the Central Provident Fund (CPF) Investment Scheme and non-CPF linked funds by taking into account the currency risk effect on internationally managed funds. In particular, we empirically...

Stadtplanungsprozesse bewegen sich im Wirkungsverhältnis sich ständig ändernder globaler, regionaler und lokaler Dynamiken. Prozesse daher aus der zeitlichen Perspektive zu betrachten, kann ein Schlüssel zum Verständnis dieser komplexen Sinnzusammenhänge sein. Obgleich in der...

Wie in vielen anderen Weltregionen soll der halbjährliche Wechsel zwischen Winter- und Sommerzeit in der EU abgeschafft werden. Dieser Beitrag untersucht, ob es eine optimale Zeitzone für ein Land gibt und ob ein „Zeitzonenflickenteppich“ tatsächlich mit hohen ökonomischen Kosten...

Eine neue Studie des ifo Instituts untersucht anhand einer Reform im österreichischen Burgenland die Folgen von verlängerten Öffnungszeiten von Wahllokalen auf die Wahlbeteiligung und Stimmenanteile von Parteien. Die Ergebnisse zeigen, dass sich durch eine Verlängerung der Öffnungszeiten...

A standard approach to estimating structural parameters in life‐cycle models imposes sufficient assumptions on the data to identify the “age profile” of outcomes, then chooses model parameters so that the model's age profile matches this empirical age profile. I show that this approach is...

In this paper, we provide arrival time prediction combined with a cost index optimization model for short haul flights. Our work is based on flight data of a European network carrier. We focus on predicting the arrival time for incoming flights at two hub locations. Airlines focus on two aspects...

Instruction time varies among schools, subjects, pupils and grades. This variation is positively associated with test scores and has been used to identify modest positive causal effects for instruction hours in certain grades. We exploit administrative data on delivered and timetabled...

Econometric analysis requires filtering techniques that are adapted to cater to data sequences that are short and that have strong trends. Whereas the economists have tended to conduct their analyses in the time domain, the engineers have emphasised the frequency domain. This paper places its...

We formulate a notion of doubly reflected BSDE in the case where the barriers xi and zeta do not satisfy any regularity assumption. Under a technical assumption (a Mokobodzki-type condition), we show existence and uniqueness of the solution. In the case where xi is right upper-semicontinuous and...

This study is the first to estimate the effects of the sending-off of a player on the full time results in international club soccer. To this end, we analyse data of more than 2,000 recent games in the UEFA Champions League and UEFA Europa League. We find that when home teams receive a red card,...

Cropland abandonment is globally widespread and has strong repercussions for regional food security and the environment. Statistics suggest that one of the hotspots of abandoned cropland is located in the drylands of the Aral Sea Basin (ASB), which covers parts of post-Soviet Central Asia,...

In this paper, we study the effects of extra-school activities on children's non-cognitive development, using data from the Millennium Cohort Study (UK) and focusing on children aged 7-11 years old. We classify the time spent out of school into six homogenous groups of activities, using...

The aim of our paper is to analyse the relationship between working time flexibility and parental time devoted to children. Using data from a large panel survey of Polish households carried out in 2013 and 2014 (Determinants of Educational Decisions Household Panel Survey, UDE) we investigate...