Articles publicats (Economia i Empresa)

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    Land-use dilemma: Evaluating the transition from crops to solar PV plants using a real options approach
    (Elsevier, 2026-01) Lazoa, Joaquín; Trujillo-Baute, Elisa; Watts, David
    The growing demand for renewable energy sources, particularly solar photovoltaic (PV) technology, poses a significant challenge to agricultural land use, creating a conflict over land allocation critical for food production and energy generation. This study addresses this issue by proposing a real options model to evaluate the timing of PV plant installation on agricultural land, incorporating uncertainties related to electricity prices and PV technology costs. This methodology has the advantage of incorporating flexibility in decision-making and the consideration of irreversibility, making it especially suitable for analyzing land-use changes. The model is applied to a case study in Spain, analyzing 134 crop types across 15 regions, to estimate the optimal timing for farmers to switch from traditional agriculture to solar PV installations. The findings indicate that the cost of PV technology is the primary driver of this transition, with the model predicting that PV installations will become more profitable than agriculture within the next 20 years, particularly in southern Spain, where higher solar irradiance accelerates the process. Furthermore, the study highlights the need for differentiated regulatory policies, with stricter measures recommended for regions with higher land-use change risk. This research contributes to the literature by providing a tool for assessing land-use conflicts between agriculture and renewable energy, offering insights for policymakers, investors, and academics.
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    Open Access
    Prosumers’ Behavior under a Regulation That Encourages Strict Self-Sufficiency. The Case of Spanish Photovoltaic Micro-Generation
    (MDPI, 2021) Mir, Pere; del Río, Pablo
    The reduction of equipment costs encourages the diffusion of photovoltaic micro-generation, however, proper regulatory measures should be implemented to facilitate self-production dissemination and to promote the emergence of new electricity markets which integrate prosumers. The specific form of these markets will depend on the level of prosumers’ self-sufficiency and the type of grid to which they will be connected. Unfortunately, Spain has been an example of resistance to micro-generation deployment. However, some things have started to change recently, albeit only to a certain extent. This article explains the key elements of the latest regulation of photovoltaic micro-generation in Spain and, through a stylized model, describes the economic behavior of prosumers in such a regulatory framework. It is concluded that this regulation only encourages prosumer plants which are strictly focused on self-sufficiency because it discourages exports and limits capacities and this regulation discourages the smart renewal of the distribution grid because it prevents prosumers from participating in the electricity market. It is recommended that the aforementioned regulatory limits be removed and pilot experiences for the market participation of prosumers be promoted by creating the appropriate technical and regulatory conditions, for example, at the municipal level.
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    Open Access
    Resultados, demoras y retos en psicología económica
    (Universidad Pablo de Olavide, 2023) Mir, Pere
    El artículo aborda el actual estado de la cuestión en psicología económica, o también economía del comportamiento. Tras un breve repaso de las bases de la teoría de la decisión económica y los dos principales programas de investigación, se abordan los resultados consolidados de la disciplina (especialmente la eficacia de las heurísticas), los aspectos que requieren ser mejorados (como la definición de los contextos más propicios a las diversas heurísticas) y los retos pendientes, especialmente la incorporación de la incertidumbre.
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    A Taste of Catalonia: A social media analysis of gastronomic content on Instagram
    (Elsevier, 2025) Marti-Ochoa, Julia; Noguer-Juncà, Ester; Martín Fuentes, Eva
    This study explores the projected image of Catalan gastronomy on Instagram by analyzing both user-generated content (UGC) tagged with #SomGastronomia and brand-generated content (BGC) published on the official account @SomGastronomia. The research is framed within the promotional activities of the “Catalonia, World Region of Gastronomy (2025)” initiative. A mixed-method approach is applied, incorporating the Stimulus-Organism-Response (SOR) model to analyze how content features influence users’ emotional reactions and engagement behavior, comparing UGC and BGC. A total of 3471 posts from 2014 to 2024 were analyzed. The results show that UGC significantly outperforms BGC in terms of engagement, particularly content shared by nanoinfluencers and personal profiles, while official institutional posts recorded the lowest levels of interaction. Sentiment and emotion analysis revealed that negative sentiment and emotional tones, such as sadness and happiness, generated higher engagement than positive or neutral content. Additionally, image-based content performed better than videos, especially on the official profile. These findings emphasize the potential of UGC as a powerful tool for brand promotion in the gastronomy sector and the importance of emotional relevance in social media strategies. This dual analysis provides insights into how Catalan gastronomy is promoted and perceived online, examining the interplay between official narratives and user interactions to assess how social media shapes a cohesive and authentic gastronomic identity, with strategic implications for tourism boards and policymakers.
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    Land-use dilemma: Evaluating the transition from crops to solar PV plants using a real options approach
    (Elsevier, 2026) Lazo, Joaquín; Trujillo-Baute, Elisa; Watts, David
    The growing demand for renewable energy sources, particularly solar photovoltaic (PV) technology, poses a significant challenge to agricultural land use, creating a conflict over land allocation critical for food production and energy generation. This study addresses this issue by proposing a real options model to evaluate the timing of PV plant installation on agricultural land, incorporating uncertainties related to electricity prices and PV technology costs. This methodology has the advantage of incorporating flexibility in decision-making and the consideration of irreversibility, making it especially suitable for analyzing land-use changes. The model is applied to a case study in Spain, analyzing 134 crop types across 15 regions, to estimate the optimal timing for farmers to switch from traditional agriculture to solar PV installations. The findings indicate that the cost of PV technology is the primary driver of this transition, with the model predicting that PV installations will become more profitable than agriculture within the next 20 years, particularly in southern Spain, where higher solar irradiance accelerates the process. Furthermore, the study highlights the need for differentiated regulatory policies, with stricter measures recommended for regions with higher land-use change risk. This research contributes to the literature by providing a tool for assessing land-use conflicts between agriculture and renewable energy, offering insights for policymakers, investors, and academics.