When high-frequency data is available, in the context of a stochastic volatility model, realised absolute variation can estimate integrated spot volatility. A central limit theory enables us to do filtering and smoothing using model-based and model-free approaches in order to improve the...

This paper studies whether high-frequency trading (HFT) increases the execution costs of institutional investors. We use technology upgrades that lower the latency of the London Stock Exchange to obtain variation in the level of HFT over time. Following upgrades, the level of HFT increases....

When high-frequency data is available, in the context of a stochastic volatility model, realised absolute variation can estimate integrated spot volatility. A central limit theory enables us to do filtering and smoothing using model-based and model-free approaches in order to improve the...

This paper studies the dynamics of Mexican inflation by using a wavelet Multiresolution Analysis (MRA) on 16 indexes of the Mexican consumer price index. This enables to estimate the long-term trend, seasonality, and local shocks of the inflation series, even when the series are non-stationary....

We use high frequency financial data to proxy, via the realised variance, each days financial variability. Based on a semiparametric stochastic volatility process, a limit theory shows you can represent the proxy as a true underlying variability plus some measurement noise with known...

In a typical developing country, coverage of the contributory social security system is low. We analyze the aggregate effects of a revenue-neutral fiscal-cum-social policy reform that consists of: 1) the implementation of universal social insurance to replace the system with low coverage; and 2)...

Current data provide macroeconomic information for a large number of countries and for a long period of time (macro panels). This causes that in these panels slope heterogeneity and cross-section dependence (CSD) are a rule rather than the exception, leading to fixed effects slope estimators to...

I review a contemporary branch of the informal sector literature that focus on understanding the way firm behavior is affected by the presence of informality and how such distortions have an impact on aggregate variables. The authors in this group all make use of dynamic general equilibrium...