We propose a tree-structured heterogeneous autoregressive (tree-HAR) process as a simple and parsimonious model for the estimation and prediction of tick-by-tick realized correlations. The model can account for different time and other relevant predictors' dependent regime shifts in the...

This paper presents two classes of tick-by-tick covariance estimators adapted to the case of rounding in the price time stamps to a frequency lower than the typical arrival rate of tick prices. We investigate, through Monte Carlo simulations, the behavior of such estimators under realistic...

In this paper we propose a smooth transition tree model for both the conditional mean and the conditional variance of the short-term interest rate process. Our model incorporates the interpretability of regression trees and the flexibility of smooth transition models to describe regime switches...

We introduce a new model for two-sided markets that generalizes stable marriages as well as assignment games. Our model is a further generalization of the model introduced by Eriksson and Karlander [2]. We prove that the core of our model is always non-empty by providing an algorithm that...

A simple consumption-based two-period model is used to study the (theoretical) effects of disagreement on asset prices. Analytical and numerical results show that individual uncertainty has a much larger effect on risk premia than disagreement if (i) the risk aversion is reasonably high and (ii)...

Do political institutions have cultural roots? Using a novel data set of cultural values we show that culture, defined as a society's collective beliefs and values, is an important determinant of institutions. We argue that the traditional proxies for culture used in the existing literature...

We develop infinitesimally robust statistical procedures for general diffusion processes. We first prove existence and uniqueness of the times series influence function of conditionally unbiased M–estimators for ergodic and stationary dffusions, under weak conditions on the (martingale)...

Nominal and real U.S. interest rates (1997-2007) are combined with inflation expectations from the Survey of Professional Forecasters to calculate time series of "inflation risk premia." It is shown that survey data on inflation and output growth uncertainty, as well as a proxy for liquidity...

This paper examines whether the chances of job placements improve if unemployed persons are counselled by caseworkers who belong to the same social group, defined by gender, age, education, and nationality. Based on an unusually informative dataset, which links Swiss unemployed to their...

This paper contains an independent empirical analysis of the effect of a Notice, issued by the Swiss Competition Commission in 2002 concerning vertical agreements between manufacturers and distributors of motor vehicles, on the degree to which the subsequent prices of cars in Switzerland...