Results 21 to 30 of about 62,890 (166)

Valor en riesgo desde un enfoque de cópulas [PDF]

, 2013
1 CD-ROMEl valor en riesgo VaR, es una medida que cuantifica los riesgos enfrentados por un portafolio. Entre los métodos de medición del VaR están la simulación histórica; simulación Monte Carlo; modelos paramétricos y modelos de duración y convexidad ...
Olarte Cadavid, Ana Milena, Torres Avendaño, Gabriel Ignacio   +1 more
core  

Mixed‐methods systematic review exploring the associations underpinning active outdoor play with connection to nature and environmental stewardship

People and Nature, EarlyView.
Abstract Active outdoor play has been positioned in the literature as an opportunity to address concerns over climate (in)action and the rising trend of disconnection from the outdoors and nature. The objective of this systematic review was to examine associations between active outdoor play and people's connection to nature and/or environmental ...
Louise de Lannoy, Brianna Nasrallah, Nicholas Hayhow, Ulises Charles‐Rodriguez, Kimberly Squires, Zainab Badruddin, Justin J. Lang, Shawnda A. Morrison, Po‐Yu Wang, Mark S. Tremblay, Eun‐Young Lee   +10 more
wiley   +1 more source

Participatory fuzzy cognitive modelling reveals leverage points for agroecological adoption in the Central Valleys of Oaxaca

People and Nature, EarlyView.
Abstract Global institutions are increasingly calling for an agroecological transition of our food systems to promote sustainable farmer livelihoods, safeguard agrobiodiversity and foster socio‐ecological resilience to a changing climate. Yet adoption remains limited, and there is a paucity of research examining how local conditions enable and ...
Gabriela Marie Garcia, Quetzalcóatl Orozco‐Ramírez, Ximena de la Mora Bakjejian, Reyna Domínguez Yescas, Emilio Hernández Martínez, Patricia Balvanera   +5 more
wiley   +1 more source

Estimación del riesgo mediante el ajuste de cópulas [PDF]

, 2015
El propósito de éste trabajo, es presentar una forma de cuantificar el valor en riesgo de una cartera de activos mediante dos medidas de riesgo ampliamente conocidas como lo son el VaR y el TVaR.
Bolancé Losilla, Catalina, Guillén, Montserrat, Padilla Barreto, Alemar Elaine   +2 more
core  

Geographic risks to functional groups of mammals and birds from habitat loss in Mexico

Conservation Biology, EarlyView.
Abstract There is a need to quantify the impact of habitat loss due to anthropogenic factors on different aspects of biodiversity, such as functional trait diversity represented by functional groups (FGs). We developed a metric to assess the weighted risk of loss of habitat for 33 FGs of mammals and 36 FGs of birds in Mexico based on potential ...
Fernando Mayani‐Parás, Francisco Botello, Claudia E. Moreno, Griselda Escalona‐Segura, Víctor Sánchez‐Cordero   +4 more
wiley   +1 more source

An experimental approach to assess the combined effects of multiple stressors on a large vertebrate species

Conservation Biology, EarlyView.
Abstract The design of experiments to investigate the combined effects of multiple stressors requires exposing target organisms to multiple combinations of stressor doses. Concurrent manipulation of stressors is often infeasible with wildlife, but long‐lasting health effects allow individual health to be used as an integrator of prior stressor exposure.
Enrico Pirotta, Catriona M. Harris, Lori H. Schwacke, Len Thomas, Jason B. Allen, Aaron A. Barleycorn, Marco Casoli, Jonathan Crossman, Laura Aichinger Dias, Laura Engleby, Erin LaBrecque, Jenny A. Litz, Katherine A. McHugh, Patrick J. O. Miller, Michael J. Moore, Theoni Photopoulou, Brian M. Quigley, Cynthia R. Smith, Brandon L. Southall, Todd R. Speakman, Ryan Takeshita, Christina N. Toms, Randall S. Wells, Eric S. Zolman, Peter L. Tyack   +24 more
wiley   +1 more source

Valor en riesgo de una cartera de renta variable [PDF]

, 1999
En este artículo se presenta un método para medir el valor en riesgo o VaR de una cartera de renta variable utilizando la técnica de Riskmetrics y dentro del ámbito conceptual del CAPM. Se desarrollan algunos ejemplos que muestran la relativa facilidad
Martín Marín, José Luis, Oliver Alfonso, María Dolores, Torre Gallegos, Antonio de la   +2 more
core  

A framework for maximizing the benefit from retaining regrowth on private land

Conservation Biology, EarlyView.
Abstract Conservation interventions often have lower‐than‐desired positive impacts, as revealed by retrospective counterfactual‐based evaluations. To address this, a prospective counterfactual‐based approach can be used to estimate potential benefits and design conservation interventions to maximize outcomes. We developed a framework for estimating the
Hannah Thomas, Jeremy S. Simmonds, Michelle S. Ward, Laura J. Sonter, Martine Maron   +4 more
wiley   +1 more source

Evaluación de metodologías tradicionales para el cálculo del valor en riesgo (VAR) en un portafolio conservador diversificado en el mercado de valores de Colombia [PDF]

, 2016
Actualmente, la existencia de múltiples metodologías para la medición del Valor en Riesgo VaR, hace necesario determinar cuál realiza con un mejor desempeño la estimación de ésta medida de riesgo considerando, además las particularidades del mercado de ...
Díaz Moreno, José Darío, Henao Hurtado, Melisa   +1 more
core  

Integrating biodiversity and business: Emerging methods driving the nature economy

Methods in Ecology and Evolution, Volume 17, Issue 5, Page 1326-1335, May 2026.
Abstract Biodiversity is increasingly recognised as a material (i.e. significant) risk to corporate value creation due to links with climate risk, land use and social equity, and through growing engagement with frameworks, such as the Taskforce on Nature‐related Financial Disclosure and Science‐Based Targets Network.
Sarah Luxton, Daniel Itzamna Avila‐Ortega, Sebastian Dunnett   +2 more
wiley   +1 more source