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Welcome to ESM 204: The Economics of Environmental Management. Purpose of the class: to help you solve environmental problems i.e., to help you solve generic group projects.
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Welcome to ESM 204:The Economics of Environmental Management • Purpose of the class: to help you solve environmental problems • i.e., to help you solve generic group projects. • Our goal is to help you see the economic dimensions of environmental problems and use that information to generate solutions. UCSB Bren School ESM 204
Instructors • Prof. Christopher Costello: • 4410 Bren Hall, costello@bren.ucsb.edu • Office Hours: Th 10:45-12:00 • Environmental and natural resource economics, fisheries, forestry, biodiversity, property rights, environmental mgt. • TA: Zack Donohew • 3308 Bren Hall, donohew@gmail.com • Office Hours: Tue/Wed 1:00-2:00 • Property rights, water, common pool resources • Plan to attend office hours! We want to get to know you! UCSB Bren School ESM 204
Course Vitals • Prerequisites: Calculus & ESM 251 or Econ 100AB • 20 lectures, Tuesday & Thursday, 9:30-10:45 • 1 discussion section per week, run by TA • Section WILL be held this first week • You should be familiar with Excel SOLVER • You are expected to attend all lectures and 1 discussion per week. • Powerpoint slides typically posted a few hours prior to class • Workload: Significant. Expect 8-10 hours per week outside of class, on average. UCSB Bren School ESM 204
Grading • Homework Assignments .. 45% • Choose 4 “mini-group-projects”: may/should work with a partner, submit 1 copy of answer with both names • If you do more than 4, your best 4 grades will be counted • Pay attention to due dates – late assignments will be penalized. • May not use the same partner twice (ie, keep moving!). • Zack covers submission guidelines • Work should be your own!. Do not share outside your team! • Class/section participation .. 15% • Midterm..20% • In class – Feb 11 • Final Exam..20% • Take-home (dist’d March 11, due March 17). • Cheating/plagiarism will not be tolerated UCSB Bren School ESM 204
Readings & Preparation • Readings: most available on web. • Many readings only available from bren.ucsb.edu domain. • Use snoop if you have to • Several books will be used a lot • Required: • Kolstad: Environmental Economics (2nd Ed) • RBR has recommended books on reserve • Hartwick and Olewiler: The Economics of Natural Resource Use, 2nd Edition (Addison-Wesley, 1998) • Boardman et al: Cost-Benefit Analysis, 2nd Ed(Prentice-Hall, 2001) • Lower level book: Goodstein (in RBR) UCSB Bren School ESM 204
Preparation • Please come to class prepared. • Preparation: read the assignments listed for the day on the webpage. • I will call on you in class. Please help make this an interactive experience. • Questions?? UCSB Bren School ESM 204
Course Approach • VERY hands-on • Every lecture designed to help solve a generic group project. • Lecture Style • Begin with brief overview from last class + questions. • Motivate new material. • I will always motivate material with a hypothetical group project • If I can’t think of a good use for the material in a real-world, group-project-like setting, you should not bother learning it. • Cover new material; ask about readings • Open discussion throughout. UCSB Bren School ESM 204
First: What is environmental economics? • Environmental Resources: • Air, water, marketed species (fisheries, timber), non-marketed species (birds, frogs), natural areas, exhaustible resources • Economy and Environment • People gain well-being from environment • Environment absorbs waste • Firms use environment to produce goods & services • Firms and individuals subject to environmental regs • People gain well-being from goods & services • Environmental Economics: study of interaction between economy and natural environment UCSB Bren School ESM 204
Two Basic Kinds of Questions • Positive: describes what will happen or why something happened • Why did US drop out of Kyoto? • What firms will leave LA if air regs are tightened? • How will farm profits be affected by a change in average temperature? • Normative: describes what should happen • How much habitat should be set aside for Gnatcatcher? • What should be the level of GHG controls in the US to balance costs and benefits? • Economists generally conduct positive analysis • Policy making is supported by normative analysis UCSB Bren School ESM 204
What will we cover in Course? • Course broken into 4 sections: • Project Evaluation: Evaluating public environmental projects and regulations • Measuring benefits and costs • Environmental Regulation • Managing renewable and non-renewable resources UCSB Bren School ESM 204
Making public environmental decisions UCSB Bren School ESM 204
Why are we studying this? • All group projects are fundamentally about making decisions about how to best solve an environmental problem • Our goal today: look at ways of evaluating different solutions to environmental problems: “project evaluation” UCSB Bren School ESM 204
Project Evaluation • How to make judgments about the advisability of public actions • Proposed regulations (e.g., air regulations) • Proposed projects (e.g., habitat acquisition) • Normative issue UCSB Bren School ESM 204
Example: Gnatcatcher • Gnatcatcher lives on California Coast • To protect species, must set aside coastal habitat and protect from housing development • Questions to ask: • How much land to set aside? • Who should pay for land set-aside? • How to answer questions (i.e., make social decisions) • Vote? Who should vote? Majority rules? • Coastal residents, LA residents, State of CA, US? Future generations? • Look at overall benefits and costs? • Other methods to decide? UCSB Bren School ESM 204
Methods for Project Evaluation • Cost-effectiveness – cheapest way to achieve a goal • Cost-benefit – balance pluses and minuses of project • Multi-criteria – looks at ways of achieving multiple goals • Precautionary Principle – how to act faced with great uncertainty* • Sustainability – only do things that can be continued in perpetuity* *Difficult to implement UCSB Bren School ESM 204
Cost effectiveness vs. Cost benefit • Cost effectiveness analysis: • Start with a goal (e.g., AB32: reduce GHG emissions to 1990 levels by 2020) • Given this goal, what is the least-cost way of achieving it? • Note: Cost effectiveness says nothing about the appropriateness of the goal. • Cost benefit analysis: Weighs costs and benefits to determine the optimal (i.e. most efficient) level. (e.g. optimal gas tax) UCSB Bren School ESM 204
Cost-Effectiveness Usually Sufficient for Environmental Problems • Easier • Only need look at cost side • Ignore benefits • Often more realistic • Client tells you his/her environmental goal • Wants you to figure out the best way of achieving it • Don’t use a bigger hammer than you need! UCSB Bren School ESM 204
Cost effectiveness not as obvious as you might think • Suppose each student is a polluting firm, each emits 100 tons of NOx per year. • 80 students x 100 tons = 8,000 tons. • 2 types of polluters: 40 high abatement cost ($1,000/ton), 40 low cost ($100/ton). • Arnold wants to reduce (abate) NOx emissions by 50%, down to 4,000 tons. • What policy should Arnold use? UCSB Bren School ESM 204
Evaluate 2 options • Option A: Everyone reduces by 50%. • Low cost firms: 40 firms*50 tons*$100/ton = $200,000. • High cost firms: 40 firms*50 tons*$1,000/ton = $2,000,000. • Total Cost = $2,200,000. • Option B: Low cost firms shut down emissions. • Total cost = 40 firms*100 tons*$100/ton = $400,000. • Option B achieves the goal at a much lower cost! UCSB Bren School ESM 204
Cost-Benefit Analysis • Dynamic – benefits and/or costs accrue over time, often over space too. • Benefits & costs accrue to different parties. • Uncertainty about future costs or benefits, risk, irreversibility. UCSB Bren School ESM 204
Examples Tuolumne River preservation Drilling in ANWR Habitat Protection UCSB Bren School ESM 204
The Tuolumne: A nice place UCSB Bren School ESM 204
Tuolumne: background • Originates in Yosemite Nat’l Park • Flows west 158 miles, 30 miles free-flow • Many RareThreatenedEndangered species rely on river • Historic significance • World-class rafting: 15,000 trips in 1982 • Recreation: 35,000 user-days annually UCSB Bren School ESM 204
Hydroelectric power generation • River’s steep canyon walls ideal for power generation • “Tuolumne River Preservation Trust” lobbied for protection under Wild & Scenic • 1983: existing hydro captured 90% water • Municipal, agricultural, hydroelectric • Rapid growth of region would require more water & more power UCSB Bren School ESM 204
“Saving the Tuolumne” • Dam proposed for hydroelectric power generation. • The “tension”: valuable electricity vs. loss in environmental amenities. • Benefits: hydroelectric power, some recreation. • Costs: environmental, rafting, fishing, hiking, other recreation. • Question: Should the dam be built? • Irrigiation district did CBA supporting dam • Influential second CBA by Environmental Defense/EDF (R Stavins) UCSB Bren School ESM 204
Economic evaluation • Irrigation district first does CBA – project a “good idea” • EDF economists further evaluate costs and benefits, including environmental costs • Traditionally, environmental losses only measured qualitatively. Difficult to compare with quantified $ Benefits. UCSB Bren School ESM 204
The costs and benefits • Benefits: $188 million annually • Electricity benefits: $184.2 million • Water yield: $3.4 million • Social Costs: $214 million annually • Internal project costs: $134 million • Lost recreation: $80 million • Without recreation: C(134) < B(188) • With recreation: C (214) > B (188) UCSB Bren School ESM 204
Tuolumne River: epilogue • Clavey-Wards Ferry project dams were not built….partly due to formal CBA. • Intense lobbying forced the political decision to forbid project. • Pete Wilson was senator. • Stavins said: “[Wilson] couldn’t say ‘I did it because I love wild rivers and I don’t like electricity’, but he could do it by holding up the study and saying, ‘look, I changed my vote for solid economic reasons.’” UCSB Bren School ESM 204
“Oil and the Arctic National Wildlife Refuge” (Kotchen & Burger) • 7.7 Billion barrels (about US consumption in 2007), at $100/barrel • Takes decades to develop • Almost no price difference • Distribution: Most benefits to industry profit and AK state taxes, not federal taxes • Potentially large environmental effects • $613B in benefits from drilling – allocate portion to environmental causes? (e.g. could increase from $7B in climate change activity in 2008). • Quid pro quo tradeoff that environmentalists willing to make? • Same issue with oil platforms off Santa Barbara? UCSB Bren School ESM 204
Ando et al: Species Distributions, Land Values, and Efficient Conservation • Basic Question: are we spending our species conservation $ wisely? • Habitat protection often focuses on biologically rich land • Focusing on biologically rich land results in fewer acres of habitat to protect species UCSB Bren School ESM 204
Cost-effectiveness Analysis • Goal • Provide habitat to a fixed number of species • No issue of how many species to protect • Compare two approaches • Acquire cheapest land to provide protection • Acquire smallest amount of land to provide protection • Why is this an interesting question? UCSB Bren School ESM 204
Approach • Conduct analysis at county level in US • Use average ag land value for price of land • Use database of species location by county (endangered or proposed endangered) • Assume if land acquired in county where species lives species is protected UCSB Bren School ESM 204
Results Locations for 453 species Blue: cost-min only Yellow: site-min only Green: both Minimize # sites Minimize costs UCSB Bren School ESM 204
Cost-minimizing Problem min Subject to For all iεI where J = {jj = 1, ... , n} is the index set of candidate reserve sites, I = {ii = 1, ... , m} is the index set of species to be covered, Ni is the subset of J that contain species i, cj is the loss associated with selecting site j, and xj = 1 if site j is selected and 0 otherwise. UCSB Bren School ESM 204
Conclusions • For 453 species • Cost per site 1/6 under cost-minimizing • Result similar to • Santa Clara River Group Project • FWS had $8 million from NRDA settlement • Wanted to use to buy habitat • Chose species rich coastal land • Much more bang choosing interior low quality/low price land • Ecological Linkages Group Project – for TNC UCSB Bren School ESM 204