Ana Maria Diaz

• PhD Economics
• Pontifical Xavierian University

We conducted an experiment in which we hired workers under different types of contracts to evaluate how flexible working time affects on‐the‐job productivity in a routine job. Our approach breaks down the global impact on productivity into sorting and behavioural effects. We find that flexible arrangements that allow workers to decide when to start...

Preventive detention legislation allows for the ongoing detention of an offender’s sentence. We explore the effects of pretrial detention on case outcomes in Bogotá, Colombia, from 2005–2017. Using pretrial judge leniency as an instrument, we find that pretrial detention leads to a 48 percentage point increase in the likelihood of being convicted....

We conducted an experiment in which we hired workers under different types of contracts to evaluate how flexible working time affects on-the-job productivity in a routine job. Our approach breaks down the global impact on productivity into sorting and behavioral effects. We find that all forms of working-time flexibility reduce the length of worker...

Firms statistically discriminate (redline) against job candidates based on where they live. We conducted a correspondence test by sending three identical fictitious resumes to every non-professional job offer posted in two main job vacancy newspapers in Bogota. The only difference between the resumes was the residential address in which the applica...

Between 1993 and 2005 Colombian municipalities experienced a polarization process, as municipalities’ unemployment rates followed different evolutions that are relative to the National average. This process was been accompanied by the creation of unemployment clusters. This paper uses a spatial Durbin model to explore the influence of various facto...

This paper explores whether the agglomeration of human capital leads to social employment advantages in urban labor markets of Colombia. It compares employment opportunities in urban areas where the level of education differs while controlling for plausible confounders using census data for 1993 and 2005. Results show that employment opportunities...

This paper explores whether the agglomeration of human capital leads to social employment advantages in urban labor markets of Colombia. It compares employment opportunities in urban areas where the level of education differs while controlling for plausible confounders using census data for 1993 and 2005. Results show that employment opportunities...

Employers and job seekers rely extensively on informal referrals to fill vacancies or to find a job. The widespread use of job contacts has been largely associated with labor outcomes, such as finding a job or even affecting wages. This paper explores whether the use of informal referrals on the job search process affects labor market outcomes of C...

Even though Colombia has shown a significant reduction in its homicide rate, this one remains comparatively high as a result of the sharp incidence of homicide within certain Colombian regions. This study analyzes the evolvement of the geographical structure of homicide between 2003 and 2010. This is carried out through a spatial analysis of the mu...

This paper explores whether the agglomeration of human capital leads to social employment advantages in urban labor markets of a developing country: Colombia. I estimate the social effects of human capital agglomeration by comparing employment opportunities of individuals located in urban areas in which the level of education differs. Results show...

This paper studies the geographic distribution of unemployment rates in Colombian urban areas. It introduces measures of spatial correlation and spatial econometric techniques to analyze the dependence in local unemployment rates across municipalities. Results suggest that Colombian municipalities have experienced a polarization process between 199...

Employers and job seekers rely extensively on job informational networks to fill vacancies or to find a job. The widespread use of job contacts to find work has been largely associated with labor outcomes, such as finding a job or even affecting wages. Some scholars have claimed that informal referrals play a determinant role in reducing informatio...

El impacto de la intensidad del conflicto armado colombiano sobre el desarrollo social no ha sido cuantificado rigurosamente. Este documento busca avanzar en el an�lisis de los efectos sociales de la actividad armada ilegal en los �ltimos a�os, a trav�s del examen de la evoluci�n de diversos indicadores de actividad armada, condiciones sociales, ca...

Colombia es actualmente el mayor productor de hoja de coca del mundo y de amapola de América, insumos básicos para la producción de cocaína y heroína. Este documento analiza la relación existente entre estos cultivos y los grupos armados ilegales en Colombia, bajo la hipótesis que la intensificación geográfica del conflicto es la causa principal de...

Colombia is currently the world’s largest producer of coca leaf and the principal producer of opium poppies in the Americas; the plants are the basic raw materials used to produce cocaine and heroin. This document will analyse the current relationship between these crops and illegal armed groups in Colombia, using the hypothesis that the geographic...

Esta investigación busca analizar la relación existente entre el conflicto armado y las distintas manifestaciones de violencia y actividad criminal. Para este fin, se realiza un recuento histórico de los conflictos internos y guerras civiles en Colombia desde el siglo XIX, haciendo énfasis en el período de La Violencia (1946-1962). Luego, se desarr...

Esta investigación busca analizar la relación existente entre el conflicto armado y las distintas manifestaciones de violencia y actividad criminal. Para este fin, se realiza un recuento histórico de los conflictos internos y guerras civiles en Colombia desde el siglo IX, haciendo énfasis en el período de La Violencia (1946-1962). Luego, se desarro...

This document analyzes the existing relationship between the armed conflict and the different manifestations of violence and criminal activity. For this purpose, a historical review on the internal conflicts and civil wars in Colombia since the XIX Century is presented, with emphasis on the Violence Period (1926-1962), followed by the analysis of t...