Mariia Murasheva

Mariia Murasheva

PhD candidate in Economics

NOVA School of Business and Economics

About Me

I am a PhD candidate in economics at NOVA School of Business and Economics, Carcavelos, Portugal. My fields are environmental and health economics. I study the impact of air pollution on the welfare of local communities.


  • Environmental economics
  • Health economics


  • PhD in Economics, 2023 (Expected)

    NOVA School of Business and Economics

  • Masters in International Management, 2015

    Graduate School of Managment, Saint-Petersburg State University

  • BA in Physics, 2013

    Faculty of Physics, Saint-Petersburg State University

Working Papers

The Impact of Local Pollution Exposure on Hospital Admissions: The Case of Portugal

The WHO air quality standards were renewed in September 2021. The largest decrease (75%) targeted the annual value of nitrogen dioxide (NO2). Despite the severity of the new guidelines, economic studies that estimate the impact of nitrogen dioxide (NO2) are lacking. The present study aims to start filling this gap by estimating the impact of the daily concentration of nitrogen dioxide (NO2) on the number of hospital admissions due to respiratory-related reasons in Portugal between January 1, 2016, and December 31, 2018. I find that a 1 microg/m3 increase in daily nitrogen dioxide (NO2) concentration leads to a 2.6% increase in the number of hospital admissions due to specific respiratory-related reasons (pneumonia, chronic obstructive pulmonary disease (COPD), asthma) among the children 2 – 5 years old. When considering the group of the most polluted parishes in the country, the magnitude of the impact increases to 3.3%, suggesting a non-linear relationship between exposure and the impact. A back-of-the-envelope estimate of the costs of a 1 microg/m3 increase in daily NO2 concentration is between 260 and 830 thousand euros (2018). In Portugal, the richer, younger, and more educated part of the population is exposed to higher-than-average daily NO2 concentrations. I propose Low Emission Zones as an efficient policy to decrease ambient nitrogen dioxide levels in Portugal. (JMP)


Average instructor rating: 5.6/6

International Management

Course Leader: 2023 - 2024

Teaching Assistant: 2015 - 2023

Applied Entrepreneurship

Teaching Assistant: 2018 - 2023