Results 181 to 190 of about 4,698 (283)

Robust Mean–Variance Portfolio Optimization: Mean–Variance–Variance Criterion Versus Mean–Variance–Standard Deviation Criterion

open access: yesMathematical Finance, EarlyView.
ABSTRACT We study a dynamic portfolio optimization problem under the mean–variance–variance (M‐V‐V) criterion proposed by Maccheroni et al. It is an analogue of the Arrow–Pratt approximation to the well‐known smooth ambiguity model. Under the standard Black–Scholes framework, we derive fully explicit equilibrium investment strategies in which a DM's ...
David Landriault, Bin Li, Yuanyuan Zhang
wiley   +1 more source

Unveiling Disparities and Missed Opportunities in Vitamin A Supplementation Among Children Under Five in Ethiopia

open access: yesMaternal &Child Nutrition, EarlyView.
Vitamin A supplementation (VAS) coverage in Ethiopia remains low (21%), with substantial inequities favoring wealthier, urban, and agrarian households, and missed opportunities to integrate VAS with health services like measles vaccination. Improving coverage, equity, and resilience requires expanding access, tailoring delivery approaches, and ...
Tsedey Moges   +16 more
wiley   +1 more source

Unions as Digital Trailblazers: How Digitalizing Voting Practices (Re)shape Membership and Participation

open access: yesNew Technology, Work and Employment, EarlyView.
ABSTRACT Unions are increasingly adopting digital tools, yet research often portrays them as lagging in the digital age. This article challenges that view by examining union agency in the digitalisation of voting. Drawing on qualitative interviews with union officials, digital consultants collaborating on developing digital union voting and 12 years of
Nana Wesley Hansen, Mark Friis Hau
wiley   +1 more source

When Coproduction Meets Professionalism: Toward a Conceptual Framework for Understanding Challenges of Lay Input

open access: yesPublic Administration, EarlyView.
ABSTRACT Coproduction is an established element in public service provision, linked to positive outcomes such as increased service quality and quantity. Realizing these outcomes requires skills and motivation from street‐level professionals and lay actors alike.
Rikke Kolding
wiley   +1 more source

Digital Roots or Digital Routes? Broadband Expansion and the Rural‐Urban Migration in China

open access: yesPopulation and Development Review, EarlyView.
Abstract This study investigates how broadband internet affects rural–urban migration in China using the Universal Broadband and Telecommunication Services pilot program launched in 2015 as a quasi‐experimental setting. Analyzing China Household Finance Survey data (2013–2021) with difference‐in‐differences estimation, we find that improved internet ...
Shuang Ma, Ren Mu
wiley   +1 more source

Care and Outcomes of New-Onset Heart Failure Across Vulnerable Populations: Temporal Trends in Mortality and Treatment in a Danish Nationwide Cohort From 2003 to 2022. [PDF]

open access: yesJ Am Heart Assoc
Ødum SF   +13 more
europepmc   +1 more source

Changing Landscapes of Parenthood: Childbearing Among Same‐Sex and Different‐Sex Couples in the Nordic Countries

open access: yesPopulation and Development Review, EarlyView.
Abstract The Nordic countries of Denmark, Sweden, Norway, and Finland were among the first countries to acknowledge same‐sex couples’ partnership and parenthood rights in their legislation. We explore trends over time in the share of female same‐sex and different‐sex couples that have children following their legal union and variation by socioeconomic ...
Maria Ponkilainen   +6 more
wiley   +1 more source

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