In turmoil periods, market liquidity can experience sudden dry ups connected with a significant price movements. This unexpected changes in liquidity patterns, often driven by irrational investorsí behaviour,and it is normally defined as Liquidity Black Hole (LBH). So far relevant research in...

This paper extends unit root tests based on quantile regression proposed by Koenker and Xiao [Koenker, R., Xiao, Z., 2004. Unit root quantile autoregression inference, Journal of the American Statistical Association 99, 775-787] to allow stationary covariates and a linear time trend. The...

This paper studies a quantile regression dynamic panel model with fixed effects. Panel data fixed effects estimators are typically biased in the presence of lagged dependent variables as regressors. To reduce the dynamic bias, we suggest the use of the instrumental variables quantile regression...

This paper examines structural changes that occur in the total factor productivity (TFP) within countries. It is possible that some episodes of high economic growth or economic decline are associated with permanent productivity shocks; therefore, this research has two objectives. The first one...

This paper employs regression discontinuity methods to identify the effect of formality on Brazilian micro-firm performance. The SIMPLES program introduced in November 1996 consolidated multiple taxes and social security contributions into a single payment and reduced taxes for eligible small...

Managing dual practice of health workers has often proved to be challenging, especially in emerging countries characterized by weak monitoring and low motivation. This paper exploits an exogenous variation in the initiation of private practice among heads of local public facilities (known as...

Using a simple theoretical model we conjecture that dual practice may increase the number of patients seen but reduce hours spent at public facilities, if public physicians lack motivation and/or if their opportunity costs are very large. Using data from Indonesia, we then test these theoretical...