Soraya Adiva Roman Eyzaguirre

@catolica.edu.br

Assistant Professor, Graduate Program of Economics
Catholic University of Brasilia

Soraya Adiva Roman Eyzaguirre


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https://researchid.co/sorayaroman

RESEARCH, TEACHING, or OTHER INTERESTS

Economics and Econometrics
7

Scopus Publications

154

Scholar Citations

8

Scholar h-index

7

Scholar i10-index

Scopus Publications

  • Inequalities in the geographic access to delivery services in Brazil
    Valdemar Pinho Neto, Cecilia Machado, Felipe Lima, Soraya Roman, Gilson Dutra
    BMC Health Services Research, 2024
    Background Despite Brazil’s recent social progress, access to health services is still unequal. This article analyzes the inter-municipal distances traveled by pregnant women to access delivery services, documenting their magnitude and relationship to socioeconomic and risk factors for over a decade in Brazil. Methods Using data between 2007 and 2017 from the Brazilian Information System of Live Births and a matrix of inter-municipal distances, we describe the evolution of (i) the share of pregnant women that traveled across municipalities and (ii) the average distance they traveled. Next, we assess which of the previous variables explains the changes in travel distance over time. Finally, we estimate the difference in the average travel distance by individual risk factors and use regression analysis to measure the association between this distance and municipal socioeconomic determinants from the Brazilian census. Results We observe that, on average, (i) the share of women traveling for childbirth increased, reaching 31% in 2017, and (ii) distances got longer, approaching the 60-kilometer mark by 2017. The increase in distance is mainly due to more women traveling. Nevertheless, regional disparities persist, especially between the north/inland and coastal regions. Women with high-risk pregnancies or newborns with risks such as low birth weight tend to travel longer distances. However, those residing in higher-development municipalities tend to travel shorter distances. Conclusion Long distances remain an obstacle to accessing delivery facilities. This matter affects the most vulnerable disproportionately. Policymakers must consider the geographic accessibility of mothers when expanding birth-related services. Additionally, more research is required to understand the decision to travel and the distance effectively traveled as different accessibility facets.
  • The role of demand in the agroecological transition: an analysis of recent literature
    Trent Blare, Soraya Roman, Cesar del Pozo Loayza, Ross Mary Borja, Pedro J. Oyarzun, Mariana Alem Zabalaga
    Current Opinion in Environmental Sustainability, 2023
  • A tale of two cities: Heterogeneous effects of COVID-19 quarantine on domestic violence in Brazil
    Soraya Roman, Marina Aguiar-Palma, Cecilia Machado
    Social Science and Medicine, 2023
  • Fiscal Exchange and Tax Compliance: Evidence From a Field Experiment
    Simeon Schächtele, Huáscar Eguino, Soraya Roman
    Journal of Policy Analysis and Management, 2023
    Behavioral interventions appealing to taxpayers’ reciprocity often leave tax compliance unaffected. We provide evidence that a “fiscal exchange nudge” increased tax compliance in a setting where one might not expect it: crisis‐ridden Argentina. In a randomized controlled trial with over 20,000 taxpayers, a tax bill visually celebrating realized public works benefiting children increased payment rates of tax delinquents by about 20 percent, or almost 40 percent when the bills were delivered in person. Without the appeal, the new bill design generated significantly fewer payments. Changes in the design of the tax bill also increased arrears cancellation. We estimate the ratio of marginal revenues to costs for the fiscal exchange bill to be 18. The factors we associate with the unexpectedly positive impacts are consistent with strengthening an affective response. We find persistent effects of the experiment two years later. The results suggest that communities have more scope to increase tax revenues through non‐threatening interventions.
  • When do tax amnesties work?
    Gustavo Canavire-Bacarreza, Huáscar Eguino, Lorena Heller, Soraya Roman
    Journal of Economic Behavior and Organization, 2023
    Tax amnesties can raise short-term revenues but reduce long-term compliance by creating expectations of future amnesties and reducing tax morale. This paper uses a laboratory experiment in Bolivia to investigate the impact of a change in the duration of amnesties and other previously unexamined amnesty modalities. The experiment examines the behavior of 338 professional workers in order to compare tax compliance, debt payment, and revenues during and post-amnesty under four different amnesty rules: (1) a one-shot unannounced amnesty (one period in the middle of a 25-period game), (2) an extended amnesty (three periods in the middle of a 25-period game), (3) a change in the audit probability rule after an extended amnesty, and (4) deductions on tax debt for paying in the first or second rounds of the extended amnesty. Increasing amnesty’s duration reduces tax compliance and cannot outperform one-shot amnesty’s total revenues. Extended amnesties with debt deductions increase total tax compliance compared to extended amnesties without debt deductions with no effects on revenues. Effects on compliance come primarily from individuals with previously high compliance rates. Any kind of amnesty mostly unmotivates individuals with low compliance rates, thus impacting amnesties’ capability to raise revenues in the long term.
  • Improving taxpayer registration through nudging? Field experimental evidence from Brazil
    Simeon Schächtele, Huáscar Eguino, Soraya Roman
    World Development, 2022
  • Pesticide misuse among small Andean farmers stems from pervasive misinformation by retailers
    Quentin François Struelens, Marco Rivera, Mariana Alem Zabalaga, Raúl Ccanto, Reinaldo Quispe Tarqui, Diego Mina, Carlos Carpio, María Rosa Yumbla Mantilla, Mélany Osorio, Soraya Roman, Diego Muñoz, Olivier Dangles
    Plos Sustainability and Transformation, 2022
    A critical issue in the context of sustainable agriculture is the reduction of pesticides. Despite well-known adverse effects, farmers around the world continue using pesticides with mostly inappropriate ways. Relevant policies have assumed that farmers themselves are primarily responsible for pesticide misuse. However, the responsibility of pesticide retailers has never been quantified due to the difficulty in obtaining reliable data. An empirical study was conducted with smallholder farmers who collected 9,670 pesticide retailers’ recommendations from 1489 surveys in the highlands of Bolivia, Ecuador and Peru. This original design allowed obtaining for the first time genuine responses about pesticide recommendations from retailers at a large scale. When comparing retailers’ recommendations with product datasheets, the results suggest that 88.2% of recommendations standards were incorrectly followed resulting in dosing recommendations that were either excessive or insufficient and accurate less than 12% of the time. An in-depth analysis also showed that 79.2% of recommended products pertained to only 6 modes of action, thus increasing the risks of pest resistance. An expert retailer model further showed that all highly toxic pesticides could be replaced by less-toxic ones. Several ways to alleviate these detrimental consequences are proposed, by acting at the root of pesticide misuse–at the retailer’s recommendation stage.

RECENT SCHOLAR PUBLICATIONS

  • Inequalities in the geographic access to delivery services in Brazil
    V Pinho Neto, C Machado, F Lima, S Roman, G Dutra
    BMC Health Services Research 24 (1), 1598 , 2024
    2024
    Citations: 15
  • Intra-household child penalty in Brazil: Formal employment and entrepreneurship gaps among vulnerable families
    S Roman, J Feijó, VP Neto, C Machado
    Center for Empirical Studies in Economics-FGV , 2024
    2024
  • The role of demand in the agroecological transition: an analysis of recent literature
    T Blare, S Roman, C del Pozo Loayza, RM Borja, PJ Oyarzun, ...
    Current Opinion in Environmental Sustainability 65, 101378 , 2023
    2023
    Citations: 1
  • A tale of two cities: Heterogeneous effects of COVID-19 quarantine on domestic violence in Brazil
    S Roman, M Aguiar-Palma, C Machado
    Social Science & Medicine 331, 116053 , 2023
    2023
    Citations: 8
  • Effects of distances on newborn outcomes in Brazil
    VP Neto, C Machado, S Roman, F Lima
    2023
  • Effects of distances on infant mortality in Brazil
    VP Neto, C Machado, S Roman, F Lima
    Published online https://sbe. org. br/anais/45EBE/microeconomia … , 2023
    2023
    Citations: 1
  • Fiscal exchange and tax compliance: Evidence from a field experiment
    S Schächtele, H Eguino, S Roman
    Journal of Policy Analysis and Management 42 (3), 796-814 , 2023
    2023
    Citations: 15
  • When do tax amnesties work?
    G Canavire-Bacarreza, H Eguino, L Heller, S Roman
    Journal of Economic Behavior & Organization 207, 350-375 , 2023
    2023
    Citations: 14
  • Pesticide misuse among small Andean farmers stems from pervasive misinformation by retailers
    QF Struelens, M Rivera, M Alem Zabalaga, R Ccanto, R Quispe Tarqui, ...
    PLOS Sustainability and Transformation 1 (6), e0000017 , 2022
    2022
    Citations: 35
  • Improving taxpayer registration through nudging? Field experimental evidence from Brazil
    S Schächtele, H Eguino, S Roman
    World Development 154, 105887 , 2022
    2022
    Citations: 11
  • Social inequality in Health: Non-Communicable Diseases in Bolivia, determinants, and current challenges at the Municipal
    SR Eyzaguirre, PC Olivera
    2022
  • Pesticide misuse among small Andean farmers stems from pervasive misinformation by retailers. PLOS Sustain Transform 1 (6): e0000017
    QF Struelens, M Rivera, M Alem Zabalaga, R Ccanto, R Quispe Tarqui, ...
    2022
    Citations: 2
  • Economía del comportamiento y administración tributaria municipal: aplicaciones recientes en América Latina
    H Eguino, S Román, S Schächtele, G Canavire-Bacarreza
    < bound method Organization. get_name_with_acronym of< Organization: Inter … , 2021
    2021
    Citations: 6
  • Nudging Taxpayer Registration: Field Experimental Evidence on Backfiring Incentives
    S Schächtele, H Eguino, S Roman
    113th Annual Conference on Taxation , 2020
    2020
  • Nudging Taxpayer Registration?: Field Experimental Evidence on Backfiring Incentives
    H Eguino, S Román, S Schächtele
    Inter-American Development Bank (IDB) Working Paper Series. Vol. IDB-WP-1135 … , 2020
    2020
    Citations: 3
  • Desigualdad Espacial en Salud: Enfermedades No Transmisibles en Bolivia, Situación Actual y Perspectivas a Nivel Municipal1
    SA Román Eyzaguirre, P Cordova Olivera
    Universidad Privada Boliviana , 2020
    2020
  • Desigualdad Espacial en Salud: Enfermedades No Transmisibles en Bolivia, Situación Actual y Perspectivas a Nivel Municipal
    SAR Eyzaguirre, PC Olivera
    SDSN Bolivia , 2020
    2020
    Citations: 2
  • Nudging Taxpayer Registration
    H Eguino, S Roman, S Schächtele
    Proceedings. Annual Conference on Taxation and Minutes of the Annual Meeting … , 2020
    2020
    Citations: 1
  • Culture and Breastfeeding duration in Peru and Bolivia
    J Assunçao, S Román
    2019
  • Light for the communities of Chiquitania: the benefits of rural electrification with renewable energy in Bolivia.
    S Ballón, S Román, K Antonio, C Foronda, D López-Soto, W Vanegas, ...
    2019

MOST CITED SCHOLAR PUBLICATIONS

  • Pesticide misuse among small Andean farmers stems from pervasive misinformation by retailers
    QF Struelens, M Rivera, M Alem Zabalaga, R Ccanto, R Quispe Tarqui, ...
    PLOS Sustainability and Transformation 1 (6), e0000017 , 2022
    2022
    Citations: 35
  • Costos laborales, economía informal y reformas a la legislación laboral en Bolivia
    S Román
    Universidad de Chile , 2011
    2011
    Citations: 16
  • Inequalities in the geographic access to delivery services in Brazil
    V Pinho Neto, C Machado, F Lima, S Roman, G Dutra
    BMC Health Services Research 24 (1), 1598 , 2024
    2024
    Citations: 15
  • Fiscal exchange and tax compliance: Evidence from a field experiment
    S Schächtele, H Eguino, S Roman
    Journal of Policy Analysis and Management 42 (3), 796-814 , 2023
    2023
    Citations: 15
  • When do tax amnesties work?
    G Canavire-Bacarreza, H Eguino, L Heller, S Roman
    Journal of Economic Behavior & Organization 207, 350-375 , 2023
    2023
    Citations: 14
  • Mortalidad de la niñez menor de cinco años en bolivia: análisis de supervivencia y sus factores de riesgo asociados ENDSA 2003, 2008 y EDSA 2016
    P Córdova Olivera, S Román Eyzaguirre, Z Soria Galvarro Ferrufino
    Investigación & desarrollo 18 (2), 73-92 , 2018
    2018
    Citations: 12
  • Improving taxpayer registration through nudging? Field experimental evidence from Brazil
    S Schächtele, H Eguino, S Roman
    World Development 154, 105887 , 2022
    2022
    Citations: 11
  • A tale of two cities: Heterogeneous effects of COVID-19 quarantine on domestic violence in Brazil
    S Roman, M Aguiar-Palma, C Machado
    Social Science & Medicine 331, 116053 , 2023
    2023
    Citations: 8
  • Economía del comportamiento y administración tributaria municipal: aplicaciones recientes en América Latina
    H Eguino, S Román, S Schächtele, G Canavire-Bacarreza
    < bound method Organization. get_name_with_acronym of< Organization: Inter … , 2021
    2021
    Citations: 6
  • Luz para las comunidades de la Chiquitania: los beneficios de la electrificación rural con energía renovable en Bolivia
    S Ballón, S Román, KM Antonio, C Foronda, D López-Soto, W Vanegas, ...
    IDB Working Paper Series , 2019
    2019
    Citations: 5
  • Social impacts of climate change in Brazil: A municipal level analysis of the effects of recent and future climate change on income, health and inequality
    LE Andersen, S Román, D Verner
    Development Research Working Paper Series , 2010
    2010
    Citations: 5
  • Nudging Taxpayer Registration?: Field Experimental Evidence on Backfiring Incentives
    H Eguino, S Román, S Schächtele
    Inter-American Development Bank (IDB) Working Paper Series. Vol. IDB-WP-1135 … , 2020
    2020
    Citations: 3
  • Pesticide misuse among small Andean farmers stems from pervasive misinformation by retailers. PLOS Sustain Transform 1 (6): e0000017
    QF Struelens, M Rivera, M Alem Zabalaga, R Ccanto, R Quispe Tarqui, ...
    2022
    Citations: 2
  • Desigualdad Espacial en Salud: Enfermedades No Transmisibles en Bolivia, Situación Actual y Perspectivas a Nivel Municipal
    SAR Eyzaguirre, PC Olivera
    SDSN Bolivia , 2020
    2020
    Citations: 2
  • Análisis costo-efectividad de intervenciones para reducir la mortalidad materna en el marco de la política SAFCI
    S Román, C Cardona, M Llapaco, V Osorio, O Nina, MA Toro
    Cotagaita , 2012
    2012
    Citations: 2
  • The role of demand in the agroecological transition: an analysis of recent literature
    T Blare, S Roman, C del Pozo Loayza, RM Borja, PJ Oyarzun, ...
    Current Opinion in Environmental Sustainability 65, 101378 , 2023
    2023
    Citations: 1
  • Effects of distances on infant mortality in Brazil
    VP Neto, C Machado, S Roman, F Lima
    Published online https://sbe. org. br/anais/45EBE/microeconomia … , 2023
    2023
    Citations: 1
  • Nudging Taxpayer Registration
    H Eguino, S Roman, S Schächtele
    Proceedings. Annual Conference on Taxation and Minutes of the Annual Meeting … , 2020
    2020
    Citations: 1
  • Intra-household child penalty in Brazil: Formal employment and entrepreneurship gaps among vulnerable families
    S Roman, J Feijó, VP Neto, C Machado
    Center for Empirical Studies in Economics-FGV , 2024
    2024
  • Effects of distances on newborn outcomes in Brazil
    VP Neto, C Machado, S Roman, F Lima
    2023