##                                  group_name order  day
## 1                                       CCT     1 12/3
## 2                Property Rights and Wrongs     2 12/3
## 3                                Protectors     3 12/3
## 4                                Carbon Tax     4 12/3
## 5                                Cool_Group     5 12/3
## 6                             We Love James     6 12/3
## 7                                       VAR     7 12/3
## 8  Student Coalition for the Green New Deal     8 12/3
## 9             Judges for Endangered Species     9 12/6
## 10                            Pink Gorrilaz    10 12/6
## 11                            The Windmills    11 12/6
## 12                              Vroom Vroom    12 12/6

Whiskey is for drinking; water is for fighting over. -Mark Twain

When the well's dry, we know the worth of water. -Benjamin Franklin

So far in this class we have talked about:

• Environmental Externality
  • Pollution control
• Property Rights Regimes
  • Exclusivity, Rivalry, and Transferability
• Scarcity
  • What measures economic scarcity
  • What happens when market cannot deliver the signal of scarcity

• What are we talking about when we talk about water?
• Water quantity
  • Who is using the water?
  • Who owns the water?
  • How to allocate water?
• Water quality
  • Sanitation
  • Pollution

• Only a tiny fraction of the earth's water can be used
  • 0.3% of the water feeds 7 billion people
• 750 million people lacks clean water
  • Drinking dirty water leads to a series of diseases, or even death
• A drop of water is worth more than a sack of gold to a thirsty man

When we "conserve" water, what are we really conserving?

Or, what is the harm of "wasting" water?

• Water quantity problem
  • Not enough water to suffice human need
  • Cape Cod, California, Dubai, Israel
  • A resource problem: property rights
• Water quality problem
  • Water is not clean enough to drink/use/recreate
  • Charles River, Potomac, Yangtze, Ganges
  • An environmental problem: externality

1. From your perspective, at what point (if any) does this discussion about water rights break down or become irrelevant for the Western US?
   
2. How do dramatic technical innovations fit into the economic assessment? What is the probability of the implementation of approaches that are currently considered ‘wild’ (for example, piping water from Canada and/or Alaska, large scale desalination factories and piping from the west, etc). At what point (if ever) do these become feasible?

1. At the moment, there are clear winners and losers in the water rights systems of the western states. What would happen to the system if a technological solution were found (and implemented) that removed the concern about water supply in the region?

• Surface water is a renewable resource consisting of rivers, lakes, and reservoirs.
• Groundwater is water that collects underground in aquifers.
  • Some aquifers are non-recharging and are thus nonrenewable resources
  • Others could potentially be recharged if hydraulically connected with a surface water system

• Many places in the world is facing water challenges
  • 4 Billion people is under stress at least seasonally
  • Half of them live in India or China
• Supply of water
  • Surface water
  • Groundwater
• Demand for water
  • Population
  • Water usage patterns

• Everything till now is "physical scarcity"
• Or rather, a simple way of relating "reserves" to "production"
  • Many people, little water - water stress
  • Few people, much water - water abundance

What can we tell, and what needs to be figured out from this analysis?

• The Demand side problem:
  • Every user should have the same "marginal benefit" from using water
  • Drinking water has the highest utility, followed by domestic use, industrial, and lastly agricultural use
• The supply side problem
  • Getting water from the cheapest source(s)
  • Move to the "substitutes" if price for water is high enough

• The institutional problem
  • What if there is no market signal for scarcity?

How many of you pay for a water bill based on volumes?

Could you rank the following six sector by their water extraction?

• Domestic
• Other public supply
• Agriculture
• Industrial
• Mining
• Thermoelectric power

Why do we complain so much about water used for irrigation, but not for thermal power generation?

• Water extraction (withdraw): amount of water that is taken out from the natural water body
• Consumptive use: The part of water withdrawn that is removed from the immediate water environment
  • Evaporated/transpired
  • Absorbed by crops/products
  • Consumed by humans/livestock
• Return flow (Non-consumptive use): The part of water withdrawn that returns to the immediate water environment

At the peak of the California water crisis, restaurant customers have to pay for tap water. There are limits on how residents can shower.

Meanwhile, farmers in central valley are pouring water on their almonds, oranges, grapes, etc.

Why is that? Could they simply trade with each other?

Two set of commmon law doctrines govern the legal right to use surface water

• Riparian doctrine
• Prior appropriation doctrine

"Anyone who owns property adjacent to the river has a right to use water"

• "Riparian": relating to or situated on the banks of a river
• English Common Law Heritage
  • Used in Canada, Australia, Eastern US
• Beneficial use clause: water has to be put into beneficial use
• Non-injury clause: one's use of water should not injury another party's capability to use that water

Does the Riparian doctrine satisfy these characteristics?

• Exclusivity
• Transferability
• Rivalry

Then why aren't there problems with water resources in most part of the Eastern US?

"First in time, first in rights"

• Anyone who claims to use water first have the right to acquire water with priority (seniority)
• In the case of a water shortage, junior water rights will be curtailed (cut off) if there is not enough water in the system

• Beneficial use clause: water has to be put into beneficial use
  • As long as one can demonstrate beneficial use, one can apply (and be approved) of a reasonable amount of water right
• Usufructuary clause: use it or lose it
  • If a right holder no longer uses water, that particular right will be (partially or fully) confiscated

https://www.dropbox.com/s/fprz6f5tarpyibg/Water%20right%20examples.pdf?dl=0

• Water allocation is based on "seniority"
  • If your great grandfather settled at the river basin a year earlier than mine, you get the water during a drought and I don't
• Neither an efficient nor a "just" allocation system
  • Those with junior rights will be completely cut off during a drought
  • (Few) winners and (lots of) losers

• Coase theorem: if property rights can be traded with zero transaction cost, then allocation is still efficient
• Water trades have been extremely hard
  • "Tragedy of the anti-commons"
  • The coordination problem: most water is held by irrigation districts, who has to seek consent from all share-holders before selling water
  • Third-party effect
• Even trade can happen, transaction costs are high
  • "Water Rights Lawyers"
  • Supreme Court cases

Doesn't the Lincoln-era folks see the problem we face today?

Or, putting it in another way, if you are tasked to design a way to allocate water in semi-arid part of the world (US West, Northern India, Northwestern China, or the Middle East), will prior appropriation be your choice?

Why not assigning water proprotionally?

• When this nation is founded, English common law dominated the legal thinking of the founding fathers
  • Riparian Law governs water use at that time
  • Think about England in particular: do they have a water shortage problem?
• There were abrupt shifts between 1850-1920, from Riparian to Prior Appropriation Laws in the Western States
  • The Manifest Destiny: the country moved further West to settle
  • Settlers were awarded land as a reward if they could settle in the Western lands

• The settlers quickly figured out that without water, no crop will be able to survive in the Western US
  • Irrigation is needed
• And the Riparian doctrine won't work so well in the Western US

For a couple of reasons. What are they?

Because of the scarce nature of water in the West (and the lack of a price signal to reflect that)

• Water uses are not quantified
• Only way of exclusion is through land ownership
• Discouraged settling further into lands that are far away from the river
  • Many lands more fertile than riparian lands with access to irrigation water

• Quantifies water to a specific use
• Establishes a "private" property right
  • Just like giving out free lands, the government also gave out free water
  • That was part of the incentives for the settlers
• Only junior rights needs to be monitored
  • Reduces monitoring cost

• Irrigation project requires large initial investments
• To put down an investment, a farmer will have to know:
  • When this ditch is built, there's better water flowing through it
  • Otherwise, it won't be worth it
• Prior appropriation limited new entry
  • Anyone who came in later will have junior rights
  • Senior rights will always be secure in the long-run

• United States quickly expanded west-ward
• Agriculture became sustainable with large-scale irrigation projects
  • Ditches
  • Dams
• Prior appropriation played a crucial role in the development of the US West

• Path dependence: how events/decisions happened in the past may have long-run consequences, even though past circumstances may no longer be relevant
• Our present is largely shaped by the historical critical junctures in institutional choices (Acemoglu and Robinson)
  • The Glorious Revolution
  • World War II
  • Presidential term limits
• Prior appropriation is certainly one of the legacy institutions
  • Water infrastructure no long need coordination
  • Creates winners & losers

• How do dramatic technical innovations fit into the economic assessment? What is the probability of the implementation of approaches that are currently considered ‘wild’ (for example, piping water from Canada and/or Alaska, large scale desalination factories and piping from the west, etc). At what point (if ever) do these become feasible?

• At the moment, there are clear winners and losers in the water rights systems of the western states. What would happen to the system if a technological solution were found (and implemented) that removed the concern about water supply in the region?

• Desalination
• Piping water from Canada/Alaska
• Dragging Icebergs from the Arctic
• Ship water from Minnesota

When will these become relevant?

(Units: $/Acre Foot)

• What are some of the potential ways to limit water use?
• And who is the world's leading player in this?

• Establish property rights for water use
  • Groundwater extraction
  • Surface water in developing countries
• Put a price tag on water
  • which reflects the true scarcity of water
  • stop subsidizing agriculrual water use
• Establish water transfer markets
  • Huge potential benefits