Background/Aims The stochastic arrival of patients at hospital emergency departments complicates their management. More than 50% of a hospital’s emergency department tends to operate beyond its normal capacity and eventually fails to deliver high-quality care. To address this concern, much...

Using Dutch time-diary data from 1975-2005 covering over 10,000 respondents for 7 consecutive days each, we show that individuals' sleep time exhibits both variability and volatility characterized by stationary autoregressive conditional heteroscedasticity: The absolute values of deviations from...

We analyze the way women's education influences the effect of children on their level of labor market involvement. We propose an econometric model that accounts for the endogeneity of labor market and fertility decisions, for the heterogeneity of the effects of children and their correlation...

We use panel data from NLSY79 to analyze the effects of the timing and spacing of births on the labor supply of married women in a framework that accounts for the endogeneity of labor market and fertility decisions, the heterogeneity of the effects of children and their correlation with the...

We compare and evaluate two different approaches to estimate overall survival curvesfrom censored data of recurrent events: (1) standard survival time analysis, and (2) a multistate framework that explicitly estimates the mortality rate during censored periods. With both models, we estimate...

The method previously devised to harvest most of the potential gain in bull markets while avoiding most of the pain in bear markets is improved to provide greater accuracy and minimize whipsaw trading that can occur in some cases. The basic method focuses on a buy-the-market and hold strategy...

In this paper we study the effects on the survival rate in employment of a scheme that facilitates gradual retirement through working time reductions. We use information on the entire labour market career and other observables to control for selection and take dynamic treatment assignment into...

We estimate the effects of economic uncertainty on time use and discuss its macroeconomic implications. Using data from the American Time Use Survey, we first infer cyclical variation in home production and leisure time. We then document that higher uncertainty increases housework and reduces...

Many countries are reviewing immigration policy, focusing on wage and employment effects for workers whose jobs may be threatened by immigration. Less attention is given to effects on prices of goods and services. The effect on childcare prices is particularly relevant to policies for dealing...