no code implementations • 2 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.
no code implementations • 3 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.
no code implementations • 6 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.
no code implementations • 1 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.
no code implementations • 2 Jun 2022 • Luis Alvarez, Bruno Ferman, Raoni Oliveira
We consider the problem of inference in shift-share research designs.
no code implementations • 18 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)?
no code implementations • 30 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.
no code implementations • 17 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.