Nonlinear behavior of the socio-economic dynamics for lake eutrophication control

Iwasa, Yoh; Uchida, Tomoe; Yokomizo, Hiroyuki

doi:10.1016/j.ecolecon.2006.11.003

Cited by 52 publications

(53 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is caused by the interaction between social hysteresis and the time delay caused by the lake dynamics, the latter one being neglected in Iwasa et al (2007). For an oscillation to occur, the speed of human behavioral change should be faster than the ecosystem dynamics.…”

Section: Introductionmentioning

confidence: 98%

“…In previous papers, we studied the coupled socioeconomic and ecological dynamics for lake water control problem (Iwasa et al 2007;Suzuki and Iwasa 2009a, b). Consider a group of players, each choosing between an environmentally friendly option C and economical option N. If all the players adopt the environmentally friendly option C, the lake water quality would be improved, which is a desirable outcome for all.…”

Section: Introductionmentioning

confidence: 99%

“…In the model for lake water pollution control, Iwasa et al (2007) introduced the dynamics of people's choice considering both economic cost of cooperation and the basic tendency to cooperate. The latter one is represented as an additional term in the utility function, named "social pressure".…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Paradox of nutrient removal in coupled socioeconomic and ecological dynamics for lake water pollution

2009

Self Cite

View full text Add to dashboard Cite

We study coupled socioeconomical and ecological dynamics for lake water pollution. Players choose between cooperative (but costly) option and economical option, and their decision is affected by the fraction of cooperators in the community and by the importance of water pollution problem. When an opportunity for choice arrives, players take the option with the higher utility (best response dynamics). This social dynamics is coupled with the dynamics of lake water pollution. First, oscillation of large amplitude is generated if social change occurs faster than ecosystem responses. Second, the model can show "paradox of nutrient removal". If phosphorus is removed more effectively either from the inflow or from the lake water, the pollution level may increase (rather than decrease) due to the decline in people's willingness to cooperate. Third, we compare the effectiveness of alternative methods in improving water quality: to reduce the cooperation cost by subsidy, to enhance people's concern to water pollution problem, and to promote the conformity among people.

show abstract

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Paradox of nutrient removal in coupled socioeconomic and ecological dynamics for lake water pollution

2009

Self Cite

View full text Add to dashboard Cite

show abstract

“…8 and 11 of [2]). Moreover, as sug-gested by the literature on social capital [3], [24], [15]), resource appropriators embedded in a social context can often rely on a wider set of tools than the traditionally considered costly sanctioning of free-riding behavior. When the result of one's actions is observable, be it the resource extraction itself or the outcome of a productive activity that is dependent on the latter, field and experimental evidence suggests that individuals belonging to a community act more cooperatively than when in isolation, as a result of their exposure to social reprobation.…”

Section: Introductionmentioning

confidence: 99%

The Survival of the Conformist: Social Pressure and Renewable Resource Management

2010

View full text Add to dashboard Cite

“…We made the amount of social pressure each neighbor applied proportional to the frequency of weeds among their neighbors, similar to Eq. 1 in Iwasa et al (2007;See Fig. 2 for an explanation of neighbor's neighbors).…”

Section: Design Conceptsmentioning

confidence: 99%

The behavior of multiple independent managers and ecological traits interact to determine prevalence of weeds

Coutts

Yokomizo

Buckley

2013

Ecological Applications

Self Cite

View full text Add to dashboard Cite

Abstract. Management of damaging invasive plants is often undertaken by multiple decision makers, each managing only a small part of the invader's population. As weeds can move between properties and re-infest eradicated sites from unmanaged sources, the dynamics of multiple decision makers plays a significant role in weed prevalence and invasion risk at the landscape scale. We used a spatially explicit agent-based simulation to determine how individual agent behavior, in concert with weed population ecology, determined weed prevalence. We compared two invasive grass species that differ in ecology, control methods, and costs: Nassella trichotoma (serrated tussock) and Eragrostis curvula (African love grass). The way decision makers reacted to the benefit of management had a large effect on the extent of a weed. If benefits of weed control outweighed the costs, and either net benefit was very large or all agents were very sensitive to net benefits, then agents tended to act synchronously, reducing the pool of infested agents available to spread the weed. As N. trichotoma was more damaging than E. curvula and had more effective control methods, agents chose to manage it more often, which resulted in lower prevalence of N. trichotoma. A relatively low number of agents who were intrinsically less motivated to control weeds led to increased prevalence of both species. This was particularly apparent when long-distance dispersal meant each infested agent increased the invasion risk for a large portion of the landscape. In this case, a small proportion of land mangers reluctant to control, regardless of costs and benefits, could lead to the whole landscape being infested, even when local control stopped new infestations. Social pressure was important, but only if it was independent of weed prevalence, suggesting that early access to information, and incentives to act on that information, may be crucial in stopping a weed from infesting large areas. The response of our model to both behavioral and ecological parameters was highly nonlinear. This implies that the outcomes of weed management programs that deal with multiple land mangers could be highly variable in both space and through time.

show abstract

Nonlinear behavior of the socio-economic dynamics for lake eutrophication control

Cited by 52 publications

References 31 publications

Paradox of nutrient removal in coupled socioeconomic and ecological dynamics for lake water pollution

Paradox of nutrient removal in coupled socioeconomic and ecological dynamics for lake water pollution

The Survival of the Conformist: Social Pressure and Renewable Resource Management

The behavior of multiple independent managers and ecological traits interact to determine prevalence of weeds

Contact Info

Product

Resources

About