Three engineers and three accountants were traveling by train to a conference. At the station, the three accountants each bought tickets and watched as the three engineers bought only one ticket. "How are three people going to travel on only one ticket?" asked an accountant. "Watch and you'll see", answered an engineer. They all boarded the train. The accountants took their respective seats, but the three engineers all crammed into a rest room and closed the door behind them. Shortly after the train departed, the conductor came around collecting tickets. He knocked on the restroom door and said, "Ticket, please". The door opened just a crack and a single arm emerged with a ticket in hand. The conductor took it and moved on. The accountants saw this and agreed it was a quite clever idea. So, after the conference, the accountants decide to copy the engineers on the return trip and save some money (being clever with money, and all that). When they got to the station, they bought a single ticket for the return trip. To their astonishment, the engineers didn't buy a ticket at all. "How are you going to ride without a ticket"? said one perplexed accountant. "Watch and you'll see", answered an engineer. When they boarded the train, the three accountants crammed into a restroom and the three engineers crammed into another one nearby. The train departed. Shortly afterward, one of the engineers left his restroom and walked over to the restroom where the accountants were hiding. He knocked on the door and said, "Ticket, please."
Watershed Conference - "The value nature vs the nature of value" - 2006 - Presentation Transcript
Environmental Economics: The nature of value vs. the value of nature
What is “value”?
What is “value”?
Webster’s Dictionary Defines Value as:
1 : a fair return or equivalent in goods, services, or money for something exchanged
2 : the monetary worth of something : marketable price
3 : relative worth, utility , or importance <a good value at the price> <the value of base stealing in baseball> <had nothing of value to say>
7 : something (as a principle or quality) intrinsically valuable or desirable <sought material values instead of human values -- W. H. Jones>
Utility in Value
Utility is defined as the level of happiness or satisfaction associated with alternative choices.
Economists assume that when individuals are faced with a choice of feasible alternatives, they will always select the alternative that provides the highest level of utility .
What is Environmental Economics?
A mechanism using economic theories and empirical analyses that characterizes relationships between the performance of the economy and environmental pollution control;
OR
It can be defined as the study and in-depth analyses of economic and policy issues relating to economic costs and benefits of environmental pollution control programs, policies, and guidance.
Why do we need to consider Environmental Economics?
To perform analyses of the economic impacts of environmental pollution control programs.
To address the development dimensions of environmental policy – evaluating the social and economic impacts, in particular the impacts on poverty, and designing policies that are both cost-effective and equitable.
To examine the environmental implications of development policy – making tradeoffs between poverty reduction and environmental protection.
Concepts of Value
Non-Utilitarian Concept
(Typically Intangible Values)
Utilitarian Concept
(Typically Tangible Values)
Total Economic Value
Total Economic Value (TEV)
Concept is attributed to Pearce and Warford 1993, World Without End
Theoretical structure for assessing ecosystem value as a whole
TEV CATEGORIES COMMONLY USED VALUATION METHODS USE VALUE NON-USE VALUE TOTAL ECONOMIC VALUE (TEV) Direct use value Consumptive Nonconsumptive Indirect use value Option value Bequest value Quasi-option value Existence Value
Changes in productivity
Cost-based approaches
Hedonic prices
Travel costs
Contingent valuation
Changes in productivity
Cost-based approaches
Contingent valuation
Changes in productivity
Cost-based approaches
Contingent valuation
Contingent valuation
TEV Categories Direct Use
Direct use values are based on consumptive or nonconsumptive uses.
Consumptive use is a use that reduces the overall supply of resource, while nonconsumptive use causes no reduction in quantity or supply of that resource
TEV Categories Indirect Use
Indirect use values can be described as support and protection provided to economic activity by regulatory environmental services.
Many ecosystem services are used as intermediate inputs for the production of goods, while other services indirectly contribute to consumption of goods.
An example of indirect use value of services through intermediate inputs would be pollination in food production, while indirect contribution to consumption would be water purification.
TEV Categories Option Value
A value of information about future returns net of environmental damages conditional on refraining from making an investment that would entail uncertain future environmental damages.
TEV Categories Existence Value
Existence values are non-use values often referred to as conservation values, or passive use values.
These are values applied to a resource that individuals do not intend to use, but would feel a “loss” if the resource were to disappear.
This could be stated as value ascribed to the knowledge of existence.
Studies have linked these applied values to the knowledge of maintaining a resource for one’s descendents and the knowledge of assured survival for a resource like habitats or species
TEV CATEGORIES COMMONLY USED VALUATION METHODS USE VALUE NON-USE VALUE TOTAL ECONOMIC VALUE (TEV) Direct use value Consumptive Nonconsumptive Indirect use value Option value Bequest value Quasi-option value Existence Value
Changes in productivity
Cost-based approaches
Hedonic prices
Travel costs
Contingent valuation
Changes in productivity
Cost-based approaches
Contingent valuation
Changes in productivity
Cost-based approaches
Contingent valuation
Contingent valuation
Substitute Cost Method is the focus of this research
Research
Introduction
Development pressures are increasing
Stormwater runoff characteristics are changed by development
Stormwater runoff models exist
Models produce complicated scientific/engineering data
A common metric is needed to compare varied elements
The common metric is the Ecological Services Value (ESV)
What is the problem?
Stormwater Runoff Impacts
It is often difficult for decision makers and political officials to understand complex scientific and engineering analysis, as it relates to stormwater runoff
The desire for economic development and sources of new revenue is creating intense pressure on decision makers to allow development of lands
Without a common metric, it is difficult to evaluate environmental impacts
Why is it a problem?
Decisions Will Be Made
Development decisions are often made without respect to impacts of stormwater runoff
Few tools are available to evaluate complex development decisions with well recognized, simplistic terms
Without a common metric, decision makers may not consider the impacts of development on stormwater runoff
Why is it important to solve it?
Ecosystem Deterioration
Assuming that predevelopment conditions are optimal for downstream areas, if impacts are not mitigated, significant damage can occur in the form of pollution and/or flooding
Without the appropriate comparisons, leaders may make poor decisions that could have negative impacts on society
Research Question
What is the monetary value of the natural services provided by undeveloped lands with respect to stormwater runoff impacts?
Hypothesis
H 0 = The proposed methodology and tool produces the required inputs for the ESV equation.
Where: V ES = Ecological Services Value C C = Capital costs of the construction of the stormwater control C O = Operations and maintenance costs of the stormwater control
Methodology & Tool Development Research Approach
Research Stormwater Runoff Models With Respect to ESV Equation Needs Identify Model Inputs Write Computer Code to Generate Model Inputs through GIS Test Custom Generated Inputs with Models Write Computer Code to Accept and Extract Model Output to Calculate ESV Write Computer Code to Express ESV Graphically Classify Aerial/Satellite Imagery For Research Area Generate Inputs Using Decision-Tool And Execute Models No Yes Model Execution Complete, ESV Calculator Accepted Model Output, ESV Displayed Graphically for Decision Support
Existing Stormwater Models
WinSLAMM
Source Loading and Management Model
WCS
Watershed Characterization System
L-THIA
Long-Term Hydrologic Impact Assessment
WinTR-55
Decision Support Tool Development
Input Support
Manual input
Importation of text files
Importation of databases
Derivative inputs of a GIS
Output
Graphical representations
Reporting functions
The Decision Support Tool will be developed in the form of an extension for ESRI’s ArcGIS
Expected Results
Existing models are expected to:
Determine the characteristics of stormwater runoff
Select and determine varied combinations of stormwater controls for the reduction of quantity and the enhancement of quality
Calculate the cost and operations of the selected controls
The proposed methodology and tool is expected to provide the required inputs necessary for the calculation of the ESV.
Manual Calculation Examples
Low Density Residential Site
High Density Residential Site
Commercial Site
ESV Calculation
Assumptions:
Pre-development is the optimal condition
Pre-development can be achieved through technology
Land cost is not factored
Low Density Residential Example
Low Density Residential Example Source Area Distribution
ESV for Low Density Residential
Calculated cost runoff reduction per cubic foot
$1.71
Reduction required from pre-development conditions to base developed conditions
876,298.8 cu ft
Site Acreage = 13.86
ESV = $1,498,471.29
High Density Residential Example
High Density Residential Example Source Area Distribution
ESV for High Density Residential
Calculated cost runoff reduction per cubic foot
$2.15
Reduction required from pre-development conditions to base developed conditions
1,294,188 cu ft
Site Acreage = 24.99
ESV = $2,782,504.20
Commercial Example
Commercial Example Source Area Distribution
ESV for Commercial
Calculated cost runoff reduction per cubic foot
$0.58
Reduction required from pre-development conditions to base developed conditions
8,708,669 cu ft
Site Acreage = 65.33
ESV = $4,766,005.00
Practical Example
A municipality is presented with the decision to allow a commercial retail development in an undeveloped area.
Question:
What is the monetary value of the services provided by the existing natural system (i.e. ESV), with respect to stormwater runoff?
If the ESV is greater than the costs the interested party is willing to support, the decision makers must determine if the amount of stormwater runoff impact is acceptable, hence informed consent.
Conclusions
This research will produce a methodology and decision tool:
To aid in quantifying the environmental impact and cost associated with land disturbance/development
Through the determination of a common metric, aid in understanding relationships between:
Economic development perspectives
Stormwater pollution control engineering cost implications
The value of natural stormwater services provided by the ecosystem
Lastly, this research will contribute to the greater body of knowledge on the topics of stormwater runoff impacts, environmental economics, and geographic information sciences.
SICS Consultants, LLC www.sicsconsultants.com Steve McKinney 256.289.6152 [email_address]
CALL ME!!! Cause baby needs new shoes!!!! Alexander McKinney
The historical perspective of what today is conside more
The historical perspective of what today is considered the modern study of environmental economics begins with problems proposed by Garret Hardin in his famous essay "The Tragedy of the Commons" in 1968. Many scientists, engineers, and economists have proposed methods of assessing the value of the natural environment since this time. This presentation will discuss many of these methods with specific focus on application of substitute cost method and its potential for application in stormwater management and mitigation. less
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