Water Economics and Policy Research

RESEARCH RESULTS SINCE 2010, selected (for non-commercial and educational use only. Please ask publisher for use permission)

Economics of irrigation water conservation: Dynamic optimization for consumption and investment

Poverty mitigation through optimized water development and use: Insights from the Volta Basin

The economics of aquifer protection plans under climate water stress: New insights from hydroeconomic modeling

Economic Performance of Irrigation Capacity Development to Adapt to Climate in the American Southwest

Groundwater use and Policy Options for Sustainable Management in Southern Iraq

Policy Challenges Facing Agricultural Water Use: An International Look

Managing the Water Energy Water Food Nexus: Challenges from New Water Developments in the Amu Darya Basin

Hydroeconomic Modeling with Aquifer-River Interactions to Guide Sustainable Basin Management
Mutually Beneficial and Sustainable Management of Ethiopian and Egyptian Dams in the Nile Basin
Cost of Water for Peace and the Environment in Israel: An Integrated Approach
Irrigation Infrastructure and Water Appropriation Rules for Food Security
Adaptive Water Management in Israel: Structure and Policy Options
Water Appropriation Systems for Adapting to Water Shortage in Iraq
Economic Impacts on Irrigated Agriculture of Water Conservation Programs in Drought
Pricing Irrigation Water for Drought Adaptation in Iran
Water, Food, and Energy Security: An Elusive Search for Balance in Central Asia
Mitigating Impacts of Water Supply Shortage on Egyptian Agriculture: A Catchment Scale Analysis
Reducing Conflict in Development and Allocation of Transboundary Waters
Economic Performance of Water Storage Capacity Expansion for Food Security
Water Allocation Rules in Afghanistan for Improved Food Security
Forging Sustainable Transboundary Water Sharing Agreements: Barriers and Opportunities
Economic Costs of Sustaining Water Supplies: Findings from the Rio Grande
Economics of Agricultural Water Conservation: Empirical Analysis and Policy Implications
Incentives to Adopt Irrigation Water Conservation Measures for Wetlands Preservation: An Integrated Basin Scale Analysis
Cost Benefit and Water Resources Policy: A Survey
Gains from Improved Irrigation Water Use Efficiency in Egypt
Water Right Prices in the Rio Grande: Analysis and Policy Implications
Improved Water Institutions for Food Security and Rural Livelihoods in Afghanistans Balkh Basin
Gains From Expanded Irrigation Water Trading in Egypt: An Integrated Basin Approach
Financing Irrigation Water Management and Infrastructure: A Review
Efficient Water Conservation in Agriculture for Growing Urban Water Demands in Jordan
Basin Impacts of Irrigation Water Conservation Policy
Integrated Basin Management: Water and Food Policy Options for Turkey
Economics in Integrated Water Management
Water Conservation in Irrigation Can Increase Water Use
Efficient Conservation Measures in Irrigated Agriculture to Sustain Urban and Environmental Water Demands
Incentive Pricing and Cost Recovery at the Basin Scale
Efficiency, Equity, and Sustainability in a Water Quantity-Quality Optimization Model in the Rio Grande Basin
River Basin Indicators: A Framework for Evaluation in the Rio Grande
Barriers to Water Conservation in the Rio Grande Basin
Economic Impact of Instream Flow Protection for the Rio Grande Silvery Minnow in the Rio Grande Basin
Decision Support for Water Policy: A Review of Economic Concepts and Tools
Economic Impacts of Federal Policy Responses to Drought in the Rio Grande Basin
Economic Costs and Benefits of Instream Flow Protection for Endangered Species Protection in an International Basin
Integrated Economic, Hydrologic, and Institutional Analysis of Policy Responses to Mitigate Drought
Reducing Institutional Barriers to Water Conservation
Economic Value of Water in Agriculture: Concepts and Policy Applications
Economic Impact of Alternative Policy Responses to Prolonged and Severe Drought in the Rio Grande Basin

DOWNLOADABLE SOFTWARE

Free demo downloadable version of GAMS software available athttp://www.gams.com/

GAMS Code for models below (all models still under development)

 

WATER POLICY DECISION MODELS (in EXCEL)

Balkh River Canal System, Afghanistan Decision Support October 23 2009 version
Balkh River Canal System, Afghanistan Decision Support October 31 2009 version
Balkh River Canal System, Afghanistan Decision Support November 17 2009 version
Balkh River Canal System, Afghanistan Decision Support April 14 2010 version
Balkh River Canal System, Afghanistan Decision Support April 17 2010 version
Balkh River Canal System, Afghanistan Decision Support September 17 2010 version
Balkh River Canal System, Afghanistan Decision Support December 31 2010 version
Balkh River Canal System, Afghanistan Decision Support January 3 2011 version
Balkh River Canal System, Afghanistan Decision Support January 5 2011 version
Math Documentation of Spreadsheet Model
User Guide for Spreadsheet Model

WATER OPTIMIZATION DECISION MODELS (GAMS code as txt files unless otherwise noted, plus selected results). BASIN SCALE (IWRM) WITH MULTIPLE WATER USES

 Rio Grande Model Features Summary (Excel Spreadsheet): posted August 28 2011

Rio Grande Basin Model: supports Nov 2008 PNAS article on ag water conservation
Spreadsheet output in Excel
Mathematical Documentation of Model

Same as above streamlined code: posted June 25 2013
Spreadsheet output in Excel

Rio Grande Basin Model with varying drip irrigation subsidies: posted March 14 2010
Spreadsheet Output (21 meg)
Rio Grande Basin Model with several sustainability conditions for reservoirs and aquifers – Nov 13 2010 version – supports article in May 2012 Wat Res Mgmt
Spreadsheet Output (16.3 meg)
Tables published in article
Stream Aquifer Model Documentation

Rio Grande Basin Model with varying sustainability conditions for reservoirs and aquifers + ag conservation impacts Feb 11 2011 version
Spreadsheet Output

Rio Grande Basin Model – same as above — additions account for long term orchard investments May 13 2011 version
Spreadsheet Output
Powerpoint slides (AWRA – Nov 7 2011 – Albuquerque)

Rio Grande Basin Model – supports talk at UTEP – NSF Conference May 18 2011 – Sustainable Ag Water Conservation
Spreadsheet Output (16.8 meg)
Powerpoint slides (May 18 2011)

Rio Grande Basin Model – supports talk at Stockholm World Water Week August 22 2011 – Hydroeconomic Watershed Policy Analysis
Spreadsheet Output (17.4 meg)
Powerpoint slides (SIWI, August 22, 2011)

Rio Grande Basin Model – Evaluates Contribution to Each Basin State Made of Existing Rio Grande Compact: posted Nov 27 2011 – supports 2013 article on Trans Bnd Rivers – Water Policy
Spreadsheet Output (17.4 meg)

Small Scale Prototype Demo Basin Model: runs under free GAMS (pdf file)

Small Scale Prototype Demo Basin Model: posted November 4 2005

Small Scale Prototype Demo Basin Model with instream flow policy: runs under student GAMS: posted August 28 2011
Spreadsheet Output

Small Scale Prototype Basin Model without crop detail

Small Scale Prototype Basin Model without crop detail

Small Scale Prototype Basin Model with optimized infrastructure (reservoir) development pattern – July 2009

Small Scale Prototype Basin Model with optimized infrastructure (reservoir and irrigation) development pattern – July 2009
Full Scale 2 Basin Model with optimized reservoir and irrigation development pattern – July 2009

Afghan Drought/Food Vulnerability (PMP) – 14 ag nodes, 7 crops, 0 env, 0 urban, 1 pd, 3 hyd scenarios, 1 basin opt policy – Jan 5 2011
Spreadsheet Output

Afghan Drought/Food Vulnerability (PMP) – 14 ag nodes, 7 crops, 0 env, 0 urban, 1 pd, 3 hyd scenarios, several shortage sharing institutions – Dec 1 2010
Spreadsheet Output

Afghan Drought Adaptation (PMP) – wet to dry – water use unconstrained with full water – Balkh Basin, Ag only – 14 canals – June 9 2012
Spreadsheet Output of Above

Basin Scale Prototype (PMP) – 2 ag nodes, 2 crops, 1 env node, 1 reservoir rec node, 2 urban nodes, 5 yrs, 2 seasons per yr, 2 hyd scenarios, 2 policies – Dec 13 2013
Spreadsheet Output

Basin Scale Prototype — same as above earlier version — also optimizes private and social values of water – April 29 2011
Spreadsheet Output

Small Scale Prototype Basin Model with crop detail – September 2011
Spreadsheet Output of above

Small Scale Prototype Basin Model with crop detail – crops only – without reservoirs – February 6 2012
Spreadsheet Output of above

Small Scale Prototype Basin Model with crop detail and optimized reservoir and land capacity – seasonal – Jan 24 2011
Spreadsheet output

Multicrop Land Allocation without Hydrology: Marginal Cost of Crop Output = Price- March 2011
Spreadsheet Output of above

Small Scale Prototype Basin Model with crop and crop technology detail – July 2007

Prototype calibrated (PMP) Basin Model with ag detail – July 2007

Rio Grande Full Scale Basin Model without crop detail – annual (pdf file) – July 2006
Rio Grande Full Scale Basin Model without crop detail – annual – July 2006
Rio Grande Full Scale Basin Model without crop detail – seasonal – July 2006
Rio Grande Full Scale Basin Model with crop detail -annual (pdf file) – July 2006
Rio Grande Full Scale Basin Model with crop detail – annual – July 2006

Nile Basin – Ethiopia, South Sudan, Sudan, Egypt Model – supports Journal of Hydrology article – posted September 21 2015
supporting tables as spreadsheet output (10 meg)
pre-publication version of article in JH – Fall 2015

Nile Basin Egypt Model with crop detail for October 2010 EE article – updated Jan 31 2011
supporting tables as spreadsheet output (3.5 meg)

Nile Basin Egypt with Crop Detail – w and w out water trading for Oct 2011 IJWRD article – updated June 15 2011
  spreadsheet output supporting tables (1.0 meg)

  tables from IJWRD article

Nilufer Basin Turkey with crop detail – supports article in June 2009 Ecological Economics – posted Feb 2008
Spreadsheet output

Kabul + Balkh Basins Afghanistan with crop detail multiple seasons and land + reservoir expansions – July 2009
Spreadsheet Output

Evaluates Reservoir Up-Scaling – in variables – (not PMP) OPTIMIZES 1 basin’s water among canals, crops – detailed hydrology – Afghan app – J Hydrol – Jan 2013
Spreadsheet Output

Evaluates Reservoir Up-Scaling – in parameters – (PMP) allocates basin water by storage capacity and water sharing RULE among canals, max cs + ps over crops –  Afghan app Nov 28 2014 – JH
Spreadsheet Output (5.0 meg)

Drought Vulnerability Balkh Basin Afghan with crop detail one season no capacity expansions – October 30 2010
Spreadsheet Output

Murray Darling Basin Australia model with pmp crop detail, urban, and environmental values – March 15 2010
  Spreadsheet output

Amu Darya Basin Model With Tradeoffs Between Countries, Power, Crops, and Env Protection: Afghanistan, Turkmenistan, Tajikistan, Uzbekistan – posted April 29 2011
Spreadsheet output
basin map (pdf) – May 29 2011

Amu Darya Basin Model With Analysis of Rogun Dam – supports article forthcoming in Water Resources Mgmt – published August 2013 – posted March 2013
  Spreadsheet output

Amu Darya Basin Model With Tradeoffs Between Seasons, Countries, Power, Crops: Central Asia – supports article published in Eurasian Geography and Economics –     published May 2013 – posted February 2013
Spreadsheet output

Amu Darya Basin Model With Analysis of Pareto Improving Policies for Basin Countries – supports article under review WPOL – posted September 2013
Spreadsheet output

Prototype Murray Basin model with PMP calibration for 3 uses: ag, env, reservoir recreation – March 29 2010
Spreadsheet output of above
Powerpoints: Climate Adaptation and Water Resources: Berlin 2011 Infrastructure Conference – October 8 2011

Tigris – Euphrates Basin (Turkey, Syria, Iraq) with crop detail and hydropower (no pmp in ag) – Jan 20 2013
Spreadsheet output 335k
Basin Map

Tigris – Euphrates Basin (Turkey, Syria, Iraq) with crop detail and hydropower (pmp in ag) – feb_8 2013
Spreadsheet output 335k
Basin Map

Tigris – Euphrates Basin (Iraq only) with crop detail and 3 water rights system (not PMP) EXCLUDING unrestricted water trading – Oct 6 2012
Spreadsheet output (1.6 meg)

Tigris – Euphrates Basin (Iraq only) with crop detail and 4 water rights systems (not PMP-for teaching) INCLUDING detailed ET unrestricted water trading – auto sensitivity analysis – Feb 26 2013
Spreadsheet output (5.0meg)

Tigris – Euphrates Basin (Iraq only) with crop detail and 4 water rights systems (PMP – for research) INCLUDING detailed ET unrestricted water trading – auto sensitivity analysis – June 14 2013
Spreadsheet output (5.0meg) under review at JAWRA

Same as above with a few minor corrections on water use coefficients – Nov 20 2013
Spreadsheet output (5.0meg)

WORKSHOP complete package Farm Management – Iraq – Summer 2013 (pdf)

WORKSHOP SLIDES: Farm Management – Iraq – Summer 2013 (powerpoint)

WORKSHOP SLIDES: Farm Management – Iraq – Summer 2013 (pdf)

TEACHING MODEL 1: Farm Management – Iraq – July 10 2013 – text file
Same Model – GAMS code
Same Model – MS Word
Same Model – pdf

listing of results with comments – MS Word
listing of results with comments – pdf

TEACHING MODEL 2: Farm Management – Iraq – July 10 2013 – text file
Same Model – GAMS code
Same Model – MS Word
Same Model – pdf
listing results with comments – MS Word
listing of results with comments – pdf

TEACHING MODEL 3: Farm Management – Iraq – July 22 2013
Same Model – GAMS code
Same Model – MS Word
Same Model – pdf
listing results – MS Word
listing results – pdf

TEACHING MODEL 4: Farm Management – Iraq – July 22 2013
Same Model – GAMS code
Same Model – MS Word
Same Model – pdf
listing results – MS Word
listing results – pdf

TEACHING MODEL 5: Farm Management – Iraq – July 22 2013
Same Model – GAMS code
Same Model – MS Word
Same Model – pdf
spreadsheet results
tabled results

TEACHING MODEL 6: Farm Management – Iraq – July 22 2013
Same Model – GAMS code
Same Model – MS Word
Same Model – pdf
spreadsheet results
tabled_results

Hydroeconomic Model IWRM water resource management seminar Valencia Spain May-June 2010

Basin Analysis PMP with 2 ag nodes and 2 crops 2 env uses -June 28, 2010

Basin Water Allocation by Canal and Water Right Priority WITH reservoir storage and WITHOUT Optimization – Oct 6, 2012
Spreadsheet output

Basin Water Allocation by Canal and Water Right Priority WITHOUT reservoir storage and WITHOUT Optimization – Feb 3, 2012
Spreadsheet output

Basin Water Allocation by Canal and Water Right Priority WITHOUT reservoir storage and WITH Optimization – April 17, 2012
Spreadsheet output

Food Security WITH Alternative Water Right Systems WITHOUT PMP optimization – app to Afghan Irrigation – Nov 12, 2012 (supports article in Food Security – Nov 2012)
Spreadsheet output

Food Security Analysis WITHOUT Alternative Water Right Systems and WITH PMP optimization – applied to Afghan Irrigation – Nov 12, 2012 (supports same article – table 6)
Spreadsheet output

Optimized Water Infrastructure Expansion, Combined with Efficient Water Use in that optimized Infrastructure over Time – March 18, 2012

Optimized competition for water – ag use competes with urban, industry, environmental, peace treaty flows – seawater desal is backstop technology – applied to Middle East – posted August 31 2014

Spreadsheet approximate data used for model
Spreadsheet output

Optimized Water Development and Use – Jucar Basin Spain – urban, ag, environmental uses, surface and groundwater – posted June 3 2015
Spreadsheet output – 17 meg – posted June 4 2015

SINGLE WATER USE: CROP IRRIGATION

Costa_Rica_model_01 classical_pmp_farm_mgmt_replicates_observed_data_march_15_2019__6pm_usmdt

Afghan National Model: Adaptation to Drought and Climate with Water Trading – posted December 10 2015
Spreadsheet Output (< 1 meg)

Afghan National Model: Adaptation to Drought and Climate with Expanded Storage and Water Trading – posted December 31 2015
Spreadsheet Output (< 1 meg)

Prototype Farm Management (PMP) Model with yields varying by total acreage- applied to River Murray Australia (txt file) – Jan 2010
Spreadsheet Output (< 1 meg)

Lower Rio Grande (PMP) Farm Management Model – multi year, varying water supply scenarios, pumping-aquifer effects, and drip subsidies (txt file) – August 6 2011
Spreadsheet Output ( 8 meg)

Same as above – but has improved pumping – aquifer interaction as well as aquifer storage and recovery activities – Jan 13 2013
Spreadsheet Output – (7.5 meg)

Base Model: Lower Rio Grande (PMP) Farm Mgmt with varying water supply scenarios and drip subsidies – supports article in Int J Wat Res Dev – Dec 2012 – posted Feb 17 2013
Spreadsheet Output
Powerpoint slides – AWRA (NM) Albuquerque April 6, 2012
Math derivation for total irrigation water quantity demanded for one crop as a function of water and crop prices (PMP) – posted Feb 15, 2013
Spreadsheet example of math derivation – posted Feb 17, 2013

Same as base model (PMP) – but crop prices vary in the face of a fixed water supply – posted Feb 17 2013
Spreadsheet Output

Same as base model (PMP) – base or wet scenario – wet scenario reduces water price below observed level – posted May 30, 2012
Spreadsheet Output

(small but mighty – PMP) – 2**n – by crop, irrigation technology, year, water supply, drip subsidy, region – no water allocation rules – Nov 29, 2012
Spreadsheet Output (<1 meg)

Same as above (PMP) – 2×2 – by crop, year, water supply, canal, and basin – no water allocation rules – posted Dec 01, 2012
Spreadsheet Output (<1 meg)

Same as above (PMP) – application to Afghan irrigated ag – in progress posted Dec 03, 2012
Spreadsheet Output (<1 meg)

EBID New Mexico USA policy analysis with minimum acreage constraint on pecan orchards – posted Dec 10 2011
Spreadsheet Output

PMP – Farm Impacts of Altering the Duty of Water Lower Rio Grande New Mexico – posted April 27 2011
Spreadsheet Output (< 2 meg)

Lower Rio Grande (PMP) Farm Management Model with varying water supply scenarios and drip subsidies- gw backstop – posted June 12 2011
Spreadsheet Output

Same as above with varying crop prices, costs, water supplies, and drip subsidies – gw backstop with pump limits and pecan reqts – posted March 17 2013
Spreadsheet Output
Powerpoint slides for talk at K State University (posted October 31, 2012)

Same as above – w normal v drought surface supplies, drip subsidies, pump limits, pecan prodn reqts, salinity yield impacts – posted June 12 2013 – supports article in J Hydrology ag wat con – Nov 2013
Spreadsheet Output (1.1 meg)

Powerpoint slides for talk to NM Geological Society, Socorro (posted April 12, 2013)

Powerpoint slides for briefing to US Senate Staffers, Washington DC (posted June 7, 2013)

Model Math documentation in pdf also wp (posted April 14 2013)

Same as above – with various gw pumping energy price subsidies and alternative groundwater depth levels – posted Sept 13 2013
Spreadsheet Output (1.1 meg) – posted Sept 13 2013

Powerpoint slides for presentation at Colorado Irrigation Conference October 7 2013 – posted Sept 30 2013
Same as above – with multiple time periods added – posted November 12 2013
Spreadsheet Output (1.1 meg) – posted November 12 2013

Monthly irrig wout and with new water and new storage – max yield ET required ea mo for full yield – upper bnd on water use by month wout storage – upper bnd for seas with storage – unbounded land – posted June 7 2014Same as above with lower yielding but water saving crops possible if streamflows are too low in critical months – posted July 31 2014
Spreadsheet Output (<1 meg)

Simple 1 crop model – groundwater and surface water are perfect substitutes – surface water fixed – cost of gw is higher – fixed total water requirement per acre – posted Nov 14 2012

Same as above, updated for 2 surface water supply scenarios – without pumping limits – posted Nov 1 2015

Same as above, updated for 2 surface water supply scenarios – without and with pumping limits – posted Nov 1 2015

PMP – Farm Impacts of Alternative Drip Irrigation Subsidies (Cobb Douglas with deficit irrigation and ET < App) – posted July 26 2012

Dynamic groundwater pumping model (pmp) with econ, agronomy, hydrology – 2 crops – 2 irrig tech – 1 aquifer – 2 policies – 2 prices – 2 precips – 100 years – posted Oct 26 2013
Spreadsheet Output (21 meg)

Same as above, WITHOUT FORESIGHT – farm income optimized one year at a time with rotations, 2 policies, 2 water sources, aquifer storage carried over yearly – April 20 2014
Spreadsheet Output (4.6 meg)

Same as above, split by farm size with different farm sizes – Different farm sizes permit different equipment complements – posted Dec 04 2013
Spreadsheet Output (7.4 meg)

Farm Management Model with multi-crop equilibrium, 3 stages of production, and multiple water application rates per acre – Martin Model – (txt file) – posted October 16 2011
Spreadsheet Output

Southern Colorado Irrigated Ag Rio Grande Models GAMS code – posted March 2006

Southern Colorado Irrigated Ag Rio Grande Model Description (pdf file) – posted March 2006

Texas Gulf Coast Irrigation Water Conservation Model (pdf file) – posted March 2008

Texas Gulf Coast Irrigation Water Conservation Model – posted March 2008

Calibrated (PMP) Farm Level Model with theoretically correct water production function and ET – posted July 2009

Calibrated (PMP) Farm Level Model with theoretically correct water production function and ET (pdf file) – posted July 2009
Simple toy-sized Farm Scale Model (pmp) – posted November 2009

Math Documentation for Simple Farm Scale Model (pdf file) – posted November 2009

 

SINGLE USE: URBAN WATER SUPPLY

Classic urban water utility model – posted December 12 2013

classic water utility management model 2 with PMP optimized model replicates historical data – posted March 4 2019

classical water utility management model 3 with PMP optimized with residential and hotels – posted March 6 2019 4pm

classical water utility management model 4 with PMP optimized with residential and hotels – posted March 16 2019 1pm

 

TWO SECTORS COMPETE FOR SAME WATER: URBAN AND IRRIGATED AGRICULTURE (BOTH PMP)

costa_rica_classical_pmp_simple competitive_no_aquifer_hydrology_march_10_2019_1pm_usmdt

costa_rica_classical_pmp_competitive_model_detailed_march_23_2018_11am_usmdt

spreadsheet_of_model_results_CR_gw_march_23_2019_11am_usmdt

SELECTED BIBLIOGRAPHY OF AQUIFER PROTECTION ANALYSES

 

GENERIC ECOSYSTEM RESTORATION-PROTECTION MODEL WITH ADAPTABILITY AND SCALABILITY

ecosystem_protect_generic_GAMS code_ Word Document Posted July 9 2020

generic_basin_july_7_2020_130pm_usmdt Spreadsheet Posted July 9 2020

 

INTEGRATED CARBON-CROP-WATERCLIMATE POLICY MODELS

Water allocation and use with climate adaptation and mitigation – posted March 4 2012

MODFLOW-BASED GROUNDWATER PUMPING/SURFACE WATER APPLICATION FULLY INTEGRATED WITH ECONOMIC OPTIMIZATION MODELS

Economic benefits optimization model over time with MODFLOW-Darcy groundwater flow (2D) equations as foundation – without surface diversions optimized (posted July 20, 2014)
Spreadsheet Output
Math documentation of MODFLOW 2005 by USGS
Economic benefits optimization over time-space with MODFLOW – Darcy groundwater flow (2D) eqs embedded – with aq pumping + surface diversions optimized (posted April 13, 2015)
Spreadsheet Output (1.2 meg)
Spreadsheet Model Mathematical Documentation (posted April 13, 2015)

RIO GRANDE PROJECT OPERATING AGREEMENT – SELECTED MATERIALS

Rio Grande Project Operating Agreement – allocates project water – in GAMS – signed March 2008 – posted Oct 21 2012
Rio Grande Project Operating Agreement – allocates project water – in excel – signed March 2008 – posted Oct 21 2012
Rio Grande Project Operating Agreement – text – in wordperfect – signed March 2008 – posted Oct 21 2012
Rio Grande Project Operating Agreement – text – pdf of original – signed March 2008 – posted Oct 21 2012

MULTISECTOR WATER MODELS

Two Sector neoclassical with substitution WITHOUT intermediate goods, WITHOUT imports, WITH primary resource constraints – posted Dec 29 2012
Spreadsheet Output

Two Sector neoclassical with substitution, WITH and WITHOUT intermediate goods, WITH imports, WITH primary resource constraints WITH and WITHOUT climate – posted March 16 2014
Spreadsheet Output

Two Sector simple neoclassical with 2 outputs and 2 inputs constant prices with land and water constraints – posted Jan 16 2015
Spreadsheet Output

Two Sector simple neoclassical with 2 outputs 2 inputs and variable prices + consumer surplus with land and water constraints – posted May 20 2015
Spreadsheet Output

TWO Sector neoclassical WITH_intermeduate_goods_variable_proportions_WITH and WITHOUT consumer surplus_June_24_2019

Spreadsheet Output

WATER INSTITUTIONS OPTIMIZATION

Simple water rights adjudication – January 1 2011
Simple model integrating private and social values of water – May 1 2011
Spreadsheet Output

TRADE MODELS

Simple Trade (import/export) model – May 16 2015

GAMS CODE TEMPLATES

Transport Model solves scenarios and policies inside loops
Spreadsheet Output
Creative handling of sets, subsets, and equations

Selected Photos and Charts RIO GRANDE BASIN MAPS

Basin Flow Chart (by Brian Hurd – 2007)
Basin Flow Chart (by Hilary Brinegar – 2007)
Basin Sankey Diagram (August 2011)

WATER PHOTOS

Rio Grande Headwaters, Colorado
Rio Grande Headwaters, Colorado
Rio Grande Near Alamosa, Colorado
Fishing the Rio Grande, NM
Rio Grande Upstream of Cochiti Reservoir, NM
Rio Grande at Confluence of Jemez River, NM
Rio Grande in Drought, NM
Rio Grande in Fall, NM
Rio Grande at Taos, NM
Rio Grande Gorge near Taos, NM
Rio Grande at Big Bend, TX
Dry Rio Grande at Big Bend, TX
Rio Grande in Spring, NM
Citadel in Erbil Iraq – photo taken by NMSU water researcher – August 2013
NMSU Water Researcher with wife near Dead Sea – January 2012
Hungry Bengal Tiger
NMSU Water Researcher in Stockholm Sweden – August 2011
NMSU Water Researcher in Berlin – October 2011
NMSU Water Researcher with son in Las Cruces NM – January 2011
Barbeque in Saudi Sandstorm – May 2015

Selected Data

Colorado Basin Literature

Poster Abstracts
GAMS Models in GAMS