نتایج جستجو برای: environmental uncertainty

تعداد نتایج: 486145  

2006
Thomas Trautmann Volker H. Hoffmann Malte Schneider

Research on environmental uncertainty typically distinguishes between different sources of uncertainty according to the different environments that a company interacts with. The regulatory environment and associated uncertainties become especially important when investigating the subject of pollution reduction. Many researchers have started to investigate the effects of environmental regulation...

Journal: :Adaptive Behaviour 1999
Eric Chown

This article examines the relationship between environmental and cognitive structure. One of the key tasks for any agent interacting in the real world is the management of uncertainty; because of this the cognitive structures which interact with real environments, such as would be used in navigation, must effectively cope with the uncertainty inherent in a constantly changing world. Despite thi...

Journal: :Ecology 2014
Steffen Oppel Geoff Hilton Norman Ratcliffe Calvin Fenton James Daley Gerard Gray Juliet Vickery David Gibbons

Predicting the future trend and viability of populations is an essential task in ecology. Because many populations respond to changing environments, uncertainty surrounding environmental responses must be incorporated into population assessments. However, understanding the effects of environmental variation on population dynamics requires information on several important demographic parameters ...

1999
JEAN-DANIEL M. SAPHORES Michael Brennan Jon Conrad Joseph Doucet Peter Kennedy Bruce Shearer

This paper analyses the decision to invest to reduce the emissions of a stock pollutant under environmental uncertainty. It shows that this decision depends on the type and level of uncertainty. When uncertainty is small, there is no simple irreversibility effect because of the tension between environmental irreversibility (the stock of pollutant causes costly long-term social damages), and inv...

2012
Amos Zemel Yacov Tsur

Uncertainty enters the dynamic tradeoffs of environmental and natural resource management in a variety of ways and forms. In this chapter we review the various sources of uncertainty, the methodologies developed to account for them and implications regarding management of environmental and natural resources.

2009
R. M. Darbra J. Casal

Environmental risk assessment is an essential element in any decision making process in order to minimize the effects of human activities on the environment. Unfortunately, in many occasions, environmental data tend to be vague and imprecise and as a consequence uncertainty is associated to any study related to it. Uncertainty in risk assessment may have essentially two origins: randomness and ...

Journal: :international journal of environmental research 2011
a. ataei k.s. lee j.j. lim m.j. kim h.b. liu

in this paper, we introduce environmental systems engineering (ese) and describe some of its applications combined with process systems engineering (pse) to problems related to environmental systems. these systems—the water cycle and ecosystem cycles—are complex and highly dynamic, with an uncertainty level comparable to that of chemical systems. to illustrate the challenges of applying pse to...

2002
PETER A. VANROLLEGHEM

Water/air/soil pollution, changes in structure and function of ecosystems, soils, hydrology,..., deforestation, global warming, and others are some of the main environmental problems that mankind is facing now. These processes can be modelled on different scales and with different complexity. Sometimes, generic/empirical approaches are used but unfortunately, these do not account for uncertaint...

Journal: :IGTR 2008
Giuseppe Attanasi Aldo Montesano

Abstract The paper analyzes strategic behavior in a two-stage environmental choice problem under di¤erent information scenarios. Given uncertainty about environmental cost and irreversibility of development, “learning without destroying”emerges from strategic competition when information is endogenous and publicly available. This happens since agents trade o¤ the higher payo¤of being the …rst-m...

2012
Arash Azadegan Pankaj C. Patel Vinit Parida

S lack can act as a double-edged sword. While it can buffer against environmental threats to help ensure business continuity, slack can also be costly and reduce profitability. In this study we focus on operational slack, the form related to the firm’s production processes. We investigate the role of operational slack on firm survival during its venture stage when its survival is significantly ...

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