School of Sustainability Graduate Culminating Experiences
Student capstone and applied projects from ASU's School of Sustainability.
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- Creators: Brelsford, Christa
Description
The City of Phoenix is interested in bringing a plastic processing facility to the Phoenix metro area. A facility could potentially to increase the diversion rates of recyclables, allow for more efficient use of locally reclaimed material and bring new jobs to the Phoenix metropolitan economy. Contrary to the classic “put it in the bin, we’ll take care of it” attitude presented by large recyclers such as Waste Management and Republic Services, recycling economics are complex; often both a beacon of technological advancement and a lagger with regard to spot-market capabilities. Based on interviews with elite stakeholders and industry research, this mixed method paper will examine the current PET plastic recycling market and the potential for Phoenix to increase its circular manufacturing of plastic. The final analysis will culminate in a proposed set of recommendations that could help Phoenix achieve its long-term waste diversion goals.
ContributorsPunnett, Garr (Author)
Created2018
Description
As arid cities’ water scarcity concerns grow, so does the importance of residential water conservation. Understanding the drivers of participation in water conservation programs can aid policymakers in designing programs that achieve conservation and enrollment targets while achieving cost-effectiveness and distributional goals. In this study I identify and analyze the characteristics that drive participation in the Southern Nevada Water Authority’s Water Smart Landscaping rebate program – a program that pays homeowners to replace their grass lawns with xeric landscaping – and how those characteristics change over time as rebate values and water prices vary.
In order to determine what characteristics influence participation in this program I gathered data from multiple sources. I use a panel dataset of household water consumption that spans 12 years of approximately 300,000 homes. I merged this dataset with home structural characteristics, geographical, and demographic context. I then use these characteristics in a linear probability model, with school enrollment zone fixed effects to determine their influence on a household’s probability of participation. School zones are used to control for unobserved characteristics, such as demographics, which are not at a household level. I then utilize these school zone fixed effects in a 2nd stage regression to decompose these elements and analyze their effect on participation.
I find that a household’s water costs, as reflected in the marginal price faced in the summer and the differential between summer and winter water bills, as well as yard size are primary factors that influence participation. I also show that changes in rebate value and water rates can affect different types of households. There is also evidence to support that neighborhood characteristics affect a household’s likelihood of participating.
In order to determine what characteristics influence participation in this program I gathered data from multiple sources. I use a panel dataset of household water consumption that spans 12 years of approximately 300,000 homes. I merged this dataset with home structural characteristics, geographical, and demographic context. I then use these characteristics in a linear probability model, with school enrollment zone fixed effects to determine their influence on a household’s probability of participation. School zones are used to control for unobserved characteristics, such as demographics, which are not at a household level. I then utilize these school zone fixed effects in a 2nd stage regression to decompose these elements and analyze their effect on participation.
I find that a household’s water costs, as reflected in the marginal price faced in the summer and the differential between summer and winter water bills, as well as yard size are primary factors that influence participation. I also show that changes in rebate value and water rates can affect different types of households. There is also evidence to support that neighborhood characteristics affect a household’s likelihood of participating.
ContributorsRusso, Jonathan (Author) / Abbott, Joshua (Contributor) / Brelsford, Christa (Contributor) / Larson, Kelli (Contributor)
Created2018-04-21