Search Results for author: Luis Alvarez

Found 8 papers, 0 papers with code

The learning effects of subsidies to bundled goods: a semiparametric approach

no code implementations2 Nov 2023 Luis Alvarez, Ciro Biderman

Our empirical results indicate that a two-week 50\% discount on car trips integrating with train/metro leads to a contemporaneous increase in the demand for integrated rides, and, consistent with our learning model, persistent changes in the mean and dispersion of nonintegrated rides.

A maximal inequality for local empirical processes under weak dependence

no code implementations3 Jul 2023 Luis Alvarez, Cristine Pinto

Local empirical processes are defined as the (local) averages $\frac{1}{nh}\sum_{i=1}^n \mathbf{1}\{x - h \leq X_i \leq x+h\}f(Z_i)$, where $f$ belongs to a class of functions, $x \in \mathbb{R}$ and $h > 0$ is a bandwidth.

Density Estimation

Extensions for Inference in Difference-in-Differences with Few Treated Clusters

no code implementations6 Feb 2023 Luis Alvarez, Bruno Ferman

We present alternatives in settings with few treated units that are valid with variation in treatment timing and/or that allow for uniform confidence bands.

valid

Reward Function Optimization of a Deep Reinforcement Learning Collision Avoidance System

no code implementations1 Dec 2022 Cooper Cone, Michael Owen, Luis Alvarez, Marc Brittain

The proliferation of unmanned aircraft systems (UAS) has caused airspace regulation authorities to examine the interoperability of these aircraft with collision avoidance systems initially designed for large transport category aircraft.

Collision Avoidance reinforcement-learning +1

Randomization Inference Tests for Shift-Share Designs

no code implementations2 Jun 2022 Luis Alvarez, Bruno Ferman, Raoni Oliveira

We consider the problem of inference in shift-share research designs.

valid

Homophily in preferences or meetings? Identifying and estimating an iterative network formation model

no code implementations18 Jan 2022 Luis Alvarez, Cristine Pinto, Vladimir Ponczek

Is homophily in social and economic networks driven by a taste for homogeneity (preferences) or by a higher probability of meeting individuals with similar attributes (opportunity)?

counterfactual

Inference in Difference-in-Differences with Few Treated Units and Spatial Correlation

no code implementations30 Jun 2020 Luis Alvarez, Bruno Ferman

We consider the problem of inference in Difference-in-Differences (DID) when there are few treated units and errors are spatially correlated.

valid

Classification of Complex Wishart Matrices with a Diffusion-Reaction System guided by Stochastic Distances

no code implementations17 Jul 2015 Luis Gomez, Luis Alvarez, Luis Mazorra, Alejandro C. Frery

We propose a new method for PolSAR (Polarimetric Synthetic Aperture Radar) imagery classification based on stochastic distances in the space of random matrices obeying complex Wishart distributions.

General Classification

Cannot find the paper you are looking for? You can Submit a new open access paper.