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Osuva

Osuva on Vaasan yliopiston avoin julkaisuarkisto. Osuva sisältää Vaasan yliopiston omat julkaisut, opinnäytteet ja tieteellisten artikkeleiden rinnakkaistallenteet. Osuvaan sisältyy julkaisujen viitetietoja, tiivistelmiä ja kokotekstejä. Sähköisten arkistokokoelmien sisältö ei ole luettavissa verkossa.

Kokoelmat Osuvassa

Viimeksi tallennetut

  • Lost in the multiverse: Methodological uncertainty in studying global equity returns
    Cakici, Nusret; Fieberg, Christian; Neszveda, Gabor; Piljak, Vanja; Zaremba, Adam (Elsevier, 2026)
    Artikkeli
    We examine methodological uncertainty in studies of the cross-section of country equity returns, analyzing 15 predictors across up to 13,824 research implementations. Varying nine key design choices, we find that many classic signals—such as momentum, beta, or idiosyncratic risk—are surprisingly fragile. Setups emphasizing small, segmented countries enhance performance, while those focused on liquid, investable markets tend to weaken it. Applying bootstrap and out-of-sample tests, only a few factors, such as market size, dividend yield, short-term momentum, and sovereign risk, consistently emerge as robust. Our evidence calls for cautious interpretation of country-level return patterns and for robustness checks across alternative research designs.
  • Comparative analysis of BTES, ATES, and power-to-hydrogen systems for seasonal storage in public building clusters
    Cong, Lianghan; Lü, Xiaoshu; Lu, Shuaiyi; Jiang, Pan (Elsevier, 2026)
    Artikkeli
    This study compares three seasonal storage pathways for 44 public buildings with shared rooftop PV in Drammen, Norway. The buildings face a strong mismatch between summer PV surplus and winter heating demand. The three pathways are borehole thermal energy storage (BTES), aquifer thermal energy storage (ATES), and a electricity-to‑hydrogen-to-electricity chain. We use measured hourly data from March 2020 to February 2021. Each pathway absorbs the summer PV surplus, stores it across the season, and returns it during the heating period. BTES and ATES are assessed as thermal storage pathways, while the hydrogen chain is evaluated as an electricity-side storage pathway. BTES injects 10,208 MWh of thermal energy into the ground and recovers 5339 MWh in winter. The seasonal recovery efficiency is close to 52%. ATES at a baseline groundwater velocity of 0.15 m per day recovers 6229 MWh from the same input and reaches 61%, the highest of the three. The hydrogen chain recovers 1452 MWh of electricity from 4455 MWh of summer surplus, giving a round-trip efficiency near 33%. ATES recovery depends strongly on local hydrogeology. Across a sweep of groundwater velocities from 0.02 to 0.30 m per day, recovery ranges from 71% down to 50%. At velocities above 0.25 m per day ATES drops below BTES. Under high‑carbon grid conditions, annual avoided emissions reach up to about 85 t CO₂ per building for BTES and 110 t per building for ATES. The hydrogen chain has the highest annualised cost. Per kWh of electricity delivered it is roughly fifteen times that of BTES. BTES remains the robust thermal option when aquifer conditions are unfavourable, while ATES is preferable where hydrogeology permits.
  • Typology of transparency as best practice: evidence from facial recognition technologies in Australia
    Bernot, Ausma; Hasan, Rakibul; Tiwari, Milind; Richards, Peita L.; Walker-Munro, Brendan (Routledge, 2026)
    Artikkeli
    Facial recognition technologies (FRTs) are commonly used in Australia in an under-regulated environment. Only two regulatory mechanisms currently direct FRT use – industry self-regulation and Australia’s privacy laws. Currently, best practices for FRT development and adoption are a key governance mechanism, including the recent guide to FRT privacy risks evaluation published by the Office of the Australian Information Commissioner in 2024. Transparency is lauded as one of the key principles for implementation, yet it can be an elusive best practice to operationalize. Transparency spans everything from technical design decisions and data governance to real-world applications, user communication, and regulatory compliance. Thus, our research critically considers the concept of transparency in FRT governance by asking: What does transparency as best practice mean in the development and implementation of facial recognition systems? This study sought to map multi-stakeholder viewpoints through problem-centered interviews (n = 30) with expert technical, policy, and academic stakeholders making and informing FRT policy in Australia. Based on their responses, we develop a typology of what transparency means in the context of operationalizing algorithmic surveillance technology governance, specifically FRTs. Our findings adopt a socio-technical perspective and identify five distinct modes of transparency in FRTs, including technical, functional, procedural, public and contextual transparency.
  • Public value as care within and for practices
    Skålén, Per (Taylor & Francis, 2026)
    Artikkeli
    This article draws on practice theory and care theory to conceptualize public value as care within and for the practices to which citizens are entitled. In doing so, it contributes by theoretically integrating major strands of public value research. More specifically, it shows that strategic management of public value depends on the sustained care for practices; that contestation over public value centres on struggles over what should be cared for; that the cocreation and codestruction of public value depend on the extent to which practices are carefully sustained; and that public values are normatively grounded in care and become visible through enacted practices. The article also outlines practical implications for addressing pressing collective challenges through policy design and demonstrates how legitimacy, management, and accountability are reconfigured when public value is understood as care within and for the practices to which citizens are entitled.
  • How Young Women’s Financial Behaviour is Affected by Global Economic Crises
    Viranko, Sara (2026-07-06)
    Kandidaatintutkielma
    This thesis reviews how young women’s financial behaviour is affected by global economic crises. The study uses a qualitive literature review. It conducts several core theories: Prospect Theory, Liquidity Preference Theory, Financial Literacy, and Financial Anxiety. These core theories help explain how different factors shape financial decision-making. First, the subject is examined from the individual points of views of the characteristics of the demographic. Following, the thesis study what effect the factors have, when all are combined. The factors in this thesis are age, gender, and the unique timeframe of crises. The findings suggest that young women tend to respond to crises with conservative financial behaviour. The reactions are linked to increased loss aversion, greater exposure to income instability, and limited confidence. The gaps in existing research are also highlighted in this review. The thesis encourages doing more studies on this demographic to increase their financial resilience
    Tämä opinnäytetyö tarkastelee, miten maailmanlaajuiset talouskriisit vaikuttavat nuorten naisten taloudelliseen käyttäytymiseen. Tutkimus on toteutettu laadullisena kirjallisuuskatsauksena. Työssä käsitellään neljää keskeistä teoriaa: prospektiteoriaa, likviditeettipreferenssiteoriaa, taloudellista lukutaitoa ja taloudellista ahdistusta. Näiden teorioiden avulla selitetään, miten eri tekijät vaikuttavat taloudelliseen päätöksentekoon. Aluksi aihetta tarkastellaan kohderyhmän yksilöllisten ominaisuuksien näkökulmasta. Sen jälkeen työssä tarkastellaan, miten tekijät vaikuttavat yhdessä. Työssä käsiteltävät tekijät ovat ikä, sukupuoli ja kriisien ajallinen konteksti. Tulokset osoittavat, että nuoret naiset reagoivat talouskriiseihin usein varovaisella taloudellisella käyttäytymisellä. Reaktiot liittyvät suurempaan tappioiden välttämiseen. Ne liittyvät myös tulojen epävakauteen ja vähäisempään luottamukseen omaan taloudelliseen osaamiseen. Kirjallisuuskatsaus tuo esiin myös nykyisen tutkimuksen puutteita. Työ kannustaa tekemään lisää tutkimusta tästä kohderyhmästä. Tavoitteena on vahvistaa heidän taloudellista resilienssiään.