| publications-4491 |
article |
1987 |
Moncur, James E.T. and Moncur, James E. T. and Moncur, James E. T. |
Urban water pricing and drought management |
Water Resources Research |
10.1029/wr023i003p00393 |
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In periods of drought, urban water systems commonly rely on nonmarket programs to induce temporary conservation, leaving the marginal price of water unchanged; an alternative is to raise the price. Using pooled cross-sectional and time series observations on single-family residential customers of the Honolulu Board of Water Supply (1982), demand for water is estimated as a function of price, income, household size, rainfall, and a dummy variable denoting a water restrictions program. Short-run elasticities suggest that an increase in marginal price of less than 40\% would achieve a 10\% reduction in water use, even during a drought episode. An accompanying conservation program would mitigate the necessary price increase, but only slightly. |
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| publications-4492 |
article |
1999 |
BarabΓ΅si, Albert LΓ΅szlΓ³ and BarabΓ΅si, Albert-LΓ΅szlΓ³ and Albert, RΓ©ka and Albert, RΓ©ka |
Emergence of Scaling in Random Networks |
Science |
10.1126/science.286.5439.509 |
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Systems as diverse as genetic networks or the World Wide Web are best described as networks with complex topology. A common property of many large networks is that the vertex connectivities follow a scale-free power-law distribution. This feature was found to be a consequence of two generic mechanisms: (i) networks expand continuously by the addition of new vertices, and (ii) new vertices attach preferentially to sites that are already well connected. A model based on these two ingredients reproduces the observed stationary scale-free distributions, which indicates that the development of large networks is governed by robust self-organizing phenomena that go beyond the particulars of the individual systems. |
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| publications-4493 |
article |
2019 |
Tao, Fei and Tao, Fei and Sui, Fangyuan and Sui, Fangyuan and Liu, Ang and Liu, Ang and Qi, Qinglin and Qi, Qinglin and Zhang, Meng and Zhang, Meng and Zhang, Meng and Song, Boyang and Song, Boyang and Guo, Zirong and Guo, Zirong and Lu, Stephen C.-Y. and Lu, Stephen C.-Y. and Nee, A. Y. C. and Nee, Andrew Y. C. |
Digital twin-driven product design framework |
International Journal of Production Research |
10.1080/00207543.2018.1443229 |
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With the advent of new generation information technologies in industry and product design, the big data-driven product design era has arrived. However, the big data-driven product design mainly pla... |
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| publications-4494 |
article |
1973 |
Young, Robert H. and Young, Robert A. |
Price elasticity of demand for municipal water: A case study of Tucson, Arizona |
Water Resources Research |
10.1029/wr009i004p01068 |
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Estimates of the price elasticity of demand (the proportional response of consumption to price change) for municipal water in Tucson, Arizona, were derived by statistical regression procedures. A significant shift in demand was found to have occurred subsequent to 1964. The price elasticity was estimated at about β’0.63 during 1946–1964 and β’0.41 during 1965–1971. These results are consistent with those obtained in other studies of urban water demand in the arid parts of the western United States. The data subjected to statistical analysis were annual observations of consumption, price, and other factors for one community in contrast to the more typical approach using cross-sectional observations of a number of communities during a specific time period. |
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| publications-4495 |
article |
1975 |
Taylor, Lester D. and Taylor, Lester D. |
The demand for electricity: a survey |
The Bell Journal of Economics |
10.2307/3003216 |
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This paper presents a survey and critique of the econometric literature on the demand for electricity. Most of the focus is on residential demand, but the few studies analyzing commercial and industrial demand are also reviewed. Special attention is given to the singular features of electricity demand, the fact that electricity is purchased according to multipart decreasing block tariffs, the need to distinguish between demand in the short run and demand in the long run, etc. In particular it is noted that proper modeling of decreasing block tariffs requires inclusion of both a marginal and average price as predictors in the demand function. The paper concludes with some suggestions for future research. |
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| publications-4496 |
article |
1997 |
Dandy, Graeme C. and Dandy, Graeme C. and Nguyα»…n, ThΓ nh TiΓn and Nguyen, Tin and Davies, CM and Davies, Carolyn and Davies, CM |
Estimating residential water demand in the presence of free allowances |
Land Economics |
10.2307/3147082 |
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The main aim of this paper is to quantify the impact of a rate structure which includes a free allowance on residential water consumption. The analysis here differs from most previous research in that it explicitly recognizes that water consumption above the free allowance, being sensitive to price, responds less to social and climatic factors than consumption below the free allowance. While the model specification and estimation procedures used here should be of interest to those interested in the demand for water, the results (using data for Adelaide, South Australia) on the determinants of water consumption should be of interest to water authorities. |
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| publications-4497 |
article |
2000 |
Syme, Geoffrey J. and Syme, Geoffrey J. and Nancarrow, Blair E. and Nancarrow, Blair E. and Seligman, Clive and Seligman, Clive |
The Evaluation of Information Campaigns to Promote Voluntary Household Water Conservation |
Evaluation Review |
10.1177/0193841x0002400601 |
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Save-water campaigns are the most common tools for promoting household water conservation. Despite their popularity, there is some debate about how effective they are. In this article, the authors provide a representative review of the summative evaluations of persuasive conservation programs. It is concluded that there is an underuse of quasi-experimental techniques and qualitative analysis. Most have been too broad to allow for specific suggestions for improving campaigns. In the second half of the review, an outline of a communications model is offered and literature relating to both input and output variables pertaining to persuasion summarized. Gaps in understanding are identified. The need to systematically research behavioral change models to improve understanding and performance of persuasive water conservation campaigns is discussed. |
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| publications-4498 |
article |
1985 |
Maidment, David R. and Maidment, David R. and Miaou, Shaw-Pin and Miaou, Shawβ€Pin β€P and Crawford, Melba M. and Crawford, Melba M. |
Transfer Function Models of Daily Urban Water Use |
Water Resources Research |
10.1029/wr021i004p00425 |
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A time series model of daily municipal water use as a function of rainfall and air temperature is developed. Total water use is separated into base use and seasonal use. The seasonal use series is detrended, then a nonlinear heat function relating water use to air temperature during rainless periods is employed to deseasonalize the series. The residuals are modeled using Box-Jenkins transfer functions with transformed rainfall and air temperature as independent variables. The model is applied to daily data from Austin, Texas from 1975 to 1981 and accounts for 97\% of the variance of daily municipal water use over that period. Forecasts of daily usage are made for a two-week lead time. |
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| publications-4499 |
article |
1991 |
Ajzen, Icek and Ajzen, Icek |
The theory of planned behavior |
Organizational Behavior and Human Decision Processes |
10.1016/0749-5978(91)90020-t |
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| publications-4500 |
article |
1992 |
Lyman, Rufus A. and Lyman, R. Ashley |
Peak and offβ€peak residential water demand |
Water Resources Research |
10.1029/92wr01082 |
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Residential water demand is studied with microdata and with allowance for (1) seasonal differences in price elasticity, (2) a dynamic adjustment process, (3) a marginal price specification, (4) cross-price effects between peak and off-peak demand, and (5) the inclusion of a detailed set of household demographic variables including accurate measures of age distribution and household income. The findings are that the peak (summer) price elasticity of demand is more than twice the off-peak elasticity; cross price effects are important at the 5\% level of significance; variables measuring household income, property value, related property features, and age distribution are simultaneously significant; and finally, peak period adjustment rates are found to be less than off-peak rates. |
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