The evaluation of the impact of an increase in gasoline tax on demand relies crucially on the estimate of the price elasticity. This paper presents an extended application of the Partially Linear Additive Model (PLAM) to the analysis of gasoline demand using a panel of US households, focusing...

We propose a hybrid penalized averaging for combining parametric and non-parametric quantile forecasts when faced with a large number of predictors. This approach goes beyond the usual practice of combining conditional mean forecasts from parametric time series models with only a few predictors....

The paper proposes a method for forecasting conditional quantiles. In practice, one often does not know the "true" structure of the underlying conditional quantile function. In addition, we may have a potentially large number of the predictors. Mainly intended for such cases, we introduce a...