Headshot - Juan Rojas.jpeg

Juan Rojas

Ph.D. Candidate in Economics

University of California, Los Angeles

I am a Ph.D. Candidate in Economics at UCLA. My research focuses on topics in economic history, and industrial organization. It also covers topics related to health economics and agricultural economics.

Contact:
Department of Economics,
University of California, Los Angeles
Bunche Hall 8283
315 Portola Plaza
Los Angeles, CA 90095

Email: rojasbjs at ucla.edu

Working Papers

This paper studies the effects of information disclosure on industrial growth, using evidence from the wine and grape industry in the United States. Between 1960 and 1968, the Raisin Lay Survey gave accurate, weekly information about the size and allocation of the raisin harvest to grape growers, packers, and winemakers. Relying on data from 1950 to 1970 at county-year level from multiple newly digitized sources, I estimate a difference-in-differences model that exploits the fact that the Survey was, for budgetary reasons, only implemented in a reduced area compared with the original plan. The results show that information disclosure led to larger wine production in surveyed areas and increased investment from both grape growers and winemakers. Furthermore, I provide empirical evidence that the main mechanism driving these results is the enhanced coordination between growers and winemakers that resulted from the information disclosure.  

Combining survey, audit, and administrative data on skilled nursing facilities (SNFs) from 1999-2017 with three complementary empirical approaches, we document that several states use creative funding schemes to divert federal Medicaid matching funds away from the intended purpose. These practices bias the intended subsidy effects of matching funds and distort the allocation of patients and resources across health care providers. Using the case study of Indiana, we document an increase in Medicaid dementia SNF stays and an associated increase in mortality pointing to a reduction in allocative efficiency in the matching of vulnerable patients to long-term care providers.

 

Teaching

Instructor at UCLA

  • Intermediate Microeconomic Theory (Summer 2019, and Summer 2021)

Teaching assistant at UCLA

  • Development of Economic Institutions in Western Europe (Fall 2018)

  • Economics of Technology and E-Commerce (Spring 2020)

  • Game Theory (Spring 2018, Spring 2019, and Spring 2021)

  • Industrial Organization (Fall 2020)

  • Intermediate Microeconomic Theory (Fall 2017, Winter 2018, Winter 2019, and Fall 2019)

  • Introduction to Econometrics for (Summer 2018, and Summer 2020)

  • Organization of Firms (Winter 2020 and Winter 2021)

Teaching assistant at Universidad de los Andes (Colombia)

  • Advanced Game Theory (M.A. and Ph.D.) (2013-2016)

  • Game Theory (2015)

  • Introduction to Macroeconomics (2015, 2016)

Teaching awards

  • Best Teaching Assistant Award (Game Theory - Spring 2021, UCLA)

  • Excellence in Online Teaching (Industrial Organization - Fall 2020, UCLA)

  • Excellence in Online Teaching (Economics of Technology and E-Commerce - Spring 2020, UCLA)

  • Best Teaching Assistant Award (Game Theory - Spring 2019, UCLA)

  • Best Teaching Assistant Award (Game Theory - Spring 2018, UCLA)

  • Best Teaching Assistant Award (Game Theory - Second Semester 2014, Universidad de los Andes)