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Benefits and Costs of Implementing the IAPMO Green Plumbing and Mechanical Code Supplement in Hawaii

We calculate the benefits and costs of implementing the International Association of Plumbing and Mechanical Officials (IAPMO) 2012 Green Plumbing and Mechanical Code Supplement (GPMC) for various building types in Hawaii, with particular emphasis on water-use efficiency provisions in the code. Benefits of the GPMC are measured as water savings, where baseline usage is estimated in accordance with the 2012 Uniform Plumbing Code (UPC), which has been recently adopted by the state and will soon be adopted by the counties. We also monetize those benefits at the household level (water bill savings) and at the state level (cost savings to the water supply boards and departments throughout the state). Based on discussions with plumbers, building contractors, developers, architects, mechanical engineers, planners, and other water specialists, as well as an assessment of prices at major home improvement stores and other online retailers, we estimate the costs of GPMC compliance for new structures planned for Hawaii over the next decade. If the GPMC is implemented, the payback period is two years and the net present value assuming a discount rate of zero is $15.13 million. For a discount rate of 5%, the NPV is $11.29 million.

PROJECT REPORT
 


The Conversation: Byron Gangnes on the Asia-Pacific Forecast

Posted December 8, 2014 | Categories: Media

UHERO Senior Research Fellow and Professor of Economics Byron Gangnes appears on The Conversation to talk about UHERO's State Forecast Update: Hawaii's Economy in Need of an Engine.

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UHERO Asia-Pacific Forecast: Moderate Regional Growth Faces Rising Risks

Posted December 4, 2014 | Categories: Forecasts

The Asia-Pacific economy slowed this year, and only slight acceleration is expected in 2015. While US economic conditions are steadily improving, Japan has had to delay for now additional tax hikes after the first one prompted contraction. Lower oil prices will be an overall plus for the global economy, even if they pose challenges for commodity exporters. China’s structural transformation and the eurozone’s struggle to move onto a satisfactory growth path continue to hold back global trade. This limits prospects for exportdependent East and Southeast Asia.

A summary of this forecast is available as a service to the public. For more detailed analysis, subscribe to UHERO's Forecast Project.

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UHERO Brief: An Economic and GHG Analysis of LNG in Hawaii

Hawaii currently meets the majority of its electricity needs through oil-fired generation – causing rates to be nearly four times the national average. In response to rising oil prices and in line with State-led action combating climate change, Hawaii is aggressively pursuing alternative sources of energy for its electric sector. Hawaii’s Renewable Portfolio Standard (RPS) states that utilities must meet 40% of electricity sales with renewable sources of energy by the year 2030; however, the remaining 60% can come from fossil fuels. Lower natural gas prices as a result of the “shale gas revolution” is in part why the State and key stakeholders are deliberating importing large amounts of natural gas in liquefied form (liquefied natural gas or LNG) for use in the electric sector.

This study builds upon past Hawaii-based LNG studies and extends the analysis by assessing both the macroeconomic and electricity sector impacts of using natural gas for power generation. We draw upon two recent studies, by Facts Global Energy (2012) and Galway Energy Advisors (2013) for price estimates. In addition to economic outcomes, this study estimates GHG emissions impacts as well as qualitatively discusses other environmental impacts related to the extraction of natural gas.


UHERO BRIEF

 

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An Economic and GHG Analysis of LNG in Hawaii

Hawaii currently meets the majority of its electricity needs through costly oil-fired generation causing rates to be nearly four times the national average (EIA, 2013a). The "shale gas revolution" has led to rapidly declining natural gas prices within the continental U.S. The emergence of a natural gas market that is de-linked from oil prices has renewed Hawaii's interest in natural gas imports. Potentially lower natural gas prices as well as the view that it will help to reduce green house gas (GHG) emissions and increase energy supply security through domestic sourcing are major reasons why the State and key stakeholders are deliberating over importing large amounts of natural gas in liquefied form (liquefied natural gas or LNG). This study uses detailed models of Hawaii's electric sector and overall economy to estimate the impacts of Hawaii importing LNG for use in the electric sector.

WORKING PAPER


The Conversation: Peter Fuleky on the State Forecast Update

Posted October 24, 2014 | Categories: Media

UHERO Research Economist and Assistant Professor of Economics Peter Fuleky appears on The Conversation to talk about UHERO's State Forecast Update: Hawaii's Economy in Need of an Engine.

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Why Does Real-Time Information Reduce Energy Consumption?

A number of studies have estimated how much energy conservation is achieved by providing households with real-time information on energy use via in-home displays. However, none of these studies tell us why real-time information changes energy-use behavior. We explore the causal mechanisms through which real-time information affects energy consumption by conducting a randomized-control trial with residential households. The experiment disentangles two competing mechanisms: (i) learning about the energy consumption of various activities, the “learning effect”, versus (ii) having a constant reminder of energy use, the “saliency effect”. We have two main results. First, we find a statistically significant treatment effect from receiving real-time information. Second, we find that learning plays a more prominent role than saliency in driving energy conservation. This finding supports the use of energy conservation programs that target consumer knowledge regarding energy use.

Published version: Lynham, J., Nitta, K., Saijo, T., & Tarui, N. (n.d.). Why does real-time information reduce energy consumption? Energy Economics. http://doi.org/http://dx.doi.org/10.1016/j.eneco.2015.11.007

Working Paper

 

 


UHERO State Forecast Update: Hawaii's Economy In Need of An Engine

Posted October 14, 2014 | Categories: Forecasts

Prospects for Hawaii growth remain muted. Despite a pickup over the summer, visitor arrivals have been soft this year, and the period of robust visitor spending increases is behind us. A mixed global economic environment and limited visitor industry capacity will keep a lid on future gains. While the construction expansion continues, it does so at a slower pace than anticipated and has created few new jobs in 2014. The building trades nevertheless remain the most likely drivers of expansion over the next several years.

A summary of this forecast is available as a service to the public. For more detailed analysis, subscribe to UHERO's Forecast Project.

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The Conversation: Carl Bonham on the Annual Hawaii Forecast

Posted August 11, 2014 | Categories: Media

UHERO Executive Director and Professor of Economics Carl Bonham appears on The Conversation to talk about UHERO's latest Annual Hawaii Forecast: Hawaii Growth Slows as Global Risks Rise.

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Annual Hawaii Forecast: Hawaii Growth Slows As Global Risks Rise

Posted August 8, 2014 | Categories: Forecasts

The stall in tourism has slowed the Hawaii economy, and no other sector has yet emerged to provide offsetting stimulus. Construction has been slow to take over as a growth driver, but this will change as we move into 2015. Barring adverse economic developments outside Hawaii, this should be sufficient to support restrained growth in employment and some improvement in household income.

A summary of this forecast is available as a service to the public. For more detailed analysis, subscribe to UHERO's Forecast Project.

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A Hurricane’s Long-Term Economic Impact: the Case of Hawaii’s Iniki

The importance of understanding the macro-economic impact of natural disasters cannot be overstated. Hurricane Iniki, that hit the Hawaiian island of Kauai on September 11th, 1992, offers an ideal case study to better understand the long-term economic impacts of a major disaster. Iniki is uniquely suited to provide insights into the long-term economic impacts of disaster because (1) there is now seventeen years of detailed post-disaster economic data and (2) a nearby island, Maui, provides an ideal control group. Hurricane Iniki was the strongest hurricane to hit the Hawaiian Islands in recorded history, and wrought an estimated 7.4 billion (2008 US$) in initial damage. Here we show that Kauai’s economy only returned to pre-Iniki levels 7-8 years after the storm; though 17 years later, it has yet to recover in terms of its population and labor force. As we document, these long-term adverse impacts of disasters are ‘hidden.’ They are not usually treated as ‘costs’ of disasters, and are ignored when cost-benefit analysis of mitigation programs is used, or when countries, states, and islands attempt to prepare, financially and otherwise, to the possibility of future events.

WORKING PAPER


In the Eye of the Storm: Coping with Future Natural Disasters in Hawaii

Hurricane Iniki, that hit the island of Kauai on September 11th, 1992, was the strongest hurricane that hit the Hawaiian Islands in recorded history, and the one that wrought the most damage, estimated at 7.4 billion (in 2008 US$). We provide an assessment of Hawaii’s vulnerability to disasters using a framework developed for small islands. In addition, we provide an analysis of the ex post impact of Iniki on the economy of Kauai. Using indicators such as visitor arrivals and agricultural production, we show that Kauai’s economy only returned to pre-Iniki levels 7-8 years after the storm. Today, it has yet to recover in terms of population growth. As an island state, Hawaii is particularly susceptible to the occurrence of disasters. Even more worrying, Hawaii’s dependence on tourism, narrow export base, high level of imports and relatively small agricultural sector make Hawaii much more likely to struggle to recover in the aftermath. By thoroughly learning from Kauai’s experience and the state’s vulnerabilities, we hope we can better prepare for likely future disaster events.

WORKING PAPER


The Growing Importance of Tourism in the Global Economy and International Affairs

For tourism-dependent countries and destinations, tourism’s share of GDP can exceed twice the world average. Today, international tourism receipts exceed $1 billion per year in some 90 nations. Worldwide, domestic tourism is typically several times larger. Tourism truly has become a global economic and social force.

- by Carl Bonham and James Mak

Full Published Article: Bonham, Carl, and Mak, James. "The Growing Importance of Tourism in the Global Economy and International Affairs." Georgetown Journal of International Affairs. Edmund A. Walsh School of Foreign Service, Georgetown University, 22 July 2014.


Incentivizing interdependent resource management: watersheds, groundwater, and coastal ecology

Managing water resources independently may result in substantial economic losses when those resources are interdependent with each other and with other environmental resources. We first develop general principles for using resources with spillovers, including corrective taxes (subsidies) for incentivizing private resource users. We then analyze specific cases of managing water resources, in particular the interaction of groundwater with upstream or downstream resource systems.

Published version: Burnett, Kimberly, Sittidaj Pongkijvorasin, James Roumasset, and Christopher A. Wada. "Incentivizing interdependent resource management: watersheds, groundwater and coastal ecology". Handbook of Water Economics. Cheltenham, UK: Edward Elgar Publishing, 2015. Print.

WORKING PAPER


Groundwater Economics without Equations

In many parts of the world, irrigation and groundwater consumption are largely dependent on groundwater. Minimizing the adverse effects of water scarcity requires optimal as well as sustainable groundwater management. A common recommendation is to limit groundwater extraction to maximum sustainable yield (MSY). Although the optimal welfare-maximizing path of groundwater extraction converges to MSY in some cases, MSY generates waste in the short and medium term due to ambiguity regarding the transition to the desired long-run stock level and failure to account for the full costs of the resource. However, the price that incentivizes optimal consumption often exceeds the physical costs of extracting and distributing groundwater, which poses a problem for public utilities facing zero excess-revenue constraints. We discuss how the optimal price can be implemented in a revenue-neutral fashion using an increasing block pricing structure. The exposition is non-technical. More advanced references on groundwater resource management are also provided.

WORKING PAPER


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