Skip to main content

This portal uses its own or third-party cookies for analytical purposes, as well as links to third-party portals in order to share content on social networks. You can get more information in the cookies policy.

Works presented

The impact of earnings management on business profitability
Authorship
A.A.M.
Master in Economics
Defense date
07.18.2025 12:00
Summary
This Master's Thesis aims to analyze the impact of earnings management practices on the business profitability of Spanish small and medium-sized enterprises (SMEs). Specifically, the study examines how both discretionary accrual-based earnings management and real activities management influence return on assets (ROA) and return on equity (ROE). To carry out the research, the modified Jones model (Dechow et al., 1995) and the Roychowdhury model (2006) are employed to obtain a measure of earnings management. These measures are then used to design a panel data econometric model that explains profitability based on these variables, along with other control variables. The analysis is based on a sample of more than one hundred Spanish SMEs over the period 2000-2023. The results show that both accrual-based and real activity-based practices have a positive and significant effect on economic and financial profitability. This suggests that SMEs may use earnings management to artificially boost their results, without violating accounting standards. Our findings are consistent with those of Ayisi et al. (2021) for Ghana during the 2008-2019 period, and we demonstrate their robustness by applying their framework to the Spanish case and including the COVID-19 period, during which no behavioral changes due to the pandemic were detected.
Direction
Iglesias Vázquez, Emma María (Tutorships)
Court
RODRIGUEZ GONZALEZ, XOSE ANTON (Chairman)
Díaz Vázquez, María del Pilar (Secretary)
LOPEZ ANDION, Mª DEL CARMEN (Member)
Economic Growth and Social Well-being: The Case of Nicaragua
Authorship
L.C.C.P.
Master in Economics
Defense date
07.18.2025 12:00
Summary
This study analyzes the behavior of economic growth and development in Nicaragua from 1990 to 2024, using a historical-structural, quantitative, and descriptive approach. It considers the impact, causes, and consequences of political, social, and economic transformations. By utilizing available data from the World Bank and review of the literature, the research identifies the main characteristics of the Nicaragua economy, which has undergone a transition toward a service-based model with the emerging potential of tourism and sustained trade liberalization, despite persistent social and regional inequalities. The results highlight that Nicaragua’s economic growth has been positive and relatively rapid in recent decades, with an average annual real GDP growth rate of 3,31 %, driven by remittances, private consumption, the dynamism of the services sector, as well as the political and macroeconomic stability achieved following the structural reforms of the 1990s. However, this growth has not been accompanied by a proportional improvement in social well-being indicators, particularly in terms of poverty, equity, education, and access to basic sanitation services. This analysis, based on the results obtained, proposes the strengthening and transformation of the current economic model toward one based on sustainable tourism as a pathway to improve well-being, close regional gaps, leverage the country's comparative advantages, and promote greater social participation. In this regard, it is essential for the Nicaraguan state and government to focus on overcoming institutional challenges, such as weak infrastructure investment, high labor informality, and longstanding territorial and social inequalities. The study concludes that a sustainable and equitable tourism-based economic model can serve as a driver of economic growth, while also producing positive outcomes in terms of development and social well-being of Nicaragua.
Direction
SURIS REGUEIRO, XOAN CARLOS (Tutorships)
Court
RODRIGUEZ GONZALEZ, XOSE ANTON (Chairman)
Díaz Vázquez, María del Pilar (Secretary)
LOPEZ ANDION, Mª DEL CARMEN (Member)
The circular economy in the perspective of the history of economic thought
Authorship
T.C.B.
Master in Economics
Defense date
02.14.2025 09:30
Summary
The circular economy is a theoretical model that seeks to minimize resource consumption, waste, and emissions, promoting reuse and recycling. This research examines the evolution of circular economy theory and its relationship with economic thought, evaluating the convergences and divergences with traditional economic models. Two main trends emerge: environmental economics, based on neoclassical economics (Ayres and Kneese), and ecological economics, with alternative contributions from Georgescu-Roegen and Boulding. The study also analyzes how circular economy ideas have developed from the 18th to the 20th century, revealing the influence of classical, neoclassical, and natural science economic theories on its evolution. The results suggest a continuity between traditional environmental and scientific thought, indicating that new circular ideas represent a gradual and evolutionary transition rather than a paradigmatic break with traditional science.
Direction
FERNANDEZ GRELA, MANUEL (Tutorships)
Court
DEL RIO IGLESIAS, FERNANDO (Chairman)
IGLESIAS CASAL, ANA (Secretary)
DIAZ VAZQUEZ, MARIA DEL ROSARIO (Member)
Efectos de la reforma de la baja parental en la brecha salarial de género: datos de España
Authorship
L.P.
Master in Economics
Defense date
07.18.2025 12:00
Summary
Do equal parental leave reduces the gender pay gap? Since 2020, Spain has implemented an 4-month obligatory leave for both fathers and mothers. This change in regulation allows one to design a quasi-natural experiment. Literature suggests that gender discrimination have a strong link with parental leave policies. Since women have historically burdened the child-raising process, especially in the newborn's first months, employers might reflect their larger parental leave in their wages, either through providing them with fewer promotions or effectively paying them worse. Since the reform equals the leave period for both men and women, any incentives to discrimination linked to the leave periods would then cease to exist, allowing one to expect the gap between genders to be shortened in the period after the reform. The difference-in-differences methodology applied here allows for comparing men and women before and after the reform, estimating the reduction in the gender pay gap. Having sampled over 400 thousand workers from Spain in two different periods, 2018 and 2022, this study shows that the gap between male and female workers has been shortened between 1.0% and 1.4%. This result is then expanded to capture possible discrimination linked to motherhood, testing how has the reform impacted the so-called motherhood penalty. Once more the model indicates a reduction in the of 39.4% in the payment penalty experienced by recent mothers after the implementation of the reform. These results are then confirmed by further robustness tests, suggesting an effective result of the reform in reducing the discrimination between male and female workers in the labor market.
Direction
FERNANDEZ GRELA, MANUEL (Tutorships)
Court
RODRIGUEZ GONZALEZ, XOSE ANTON (Chairman)
Díaz Vázquez, María del Pilar (Secretary)
LOPEZ ANDION, Mª DEL CARMEN (Member)
Bank capital regulation and its short-term effects
Authorship
A.R.R.
Master in Economics
Defense date
07.18.2025 12:00
Summary
The objective of this master’s thesis is twofold. On the one hand, it describes the importance of capital regulation in banking activity, analyzing how it affects the stability of the financial system and the dynamics of the real economy, particularly regarding credit provision and investment. The existing literature is reviewed to understand the tensions between financial soundness and economic activity, highlighting the structural benefits and potential transition costs associated with an increase in capital requirements. On the other hand, the thesis focuses on a detailed study of the capital regulation model developed by Mendicino et al. (2020). Its main features, assumptions, and equilibrium conditions are presented, as well as the mechanisms through which capital policy impacts bank behavior and the aggregate economy. The analysis shows that raising capital requirements enhances financial stability by reducing the risk of bank failures but also generates short-term contractionary effects on credit and investment. For this reason, special emphasis is placed on the importance of the timing and design of regulatory reforms: a more gradual implementation of the new requirements helps mitigate adjustment costs by allowing financial institutions to strengthen their capital positions without abruptly restricting their credit activity.
Direction
RODRIGUEZ SAMPAYO, ANTONIO (Tutorships)
Court
RODRIGUEZ GONZALEZ, XOSE ANTON (Chairman)
Díaz Vázquez, María del Pilar (Secretary)
LOPEZ ANDION, Mª DEL CARMEN (Member)