12,021 research outputs found

    Catholics Are Just Like Everyone Else? : The Council and Catholic Conviction

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    Social survey findings on en route noise annoyance issues

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    Most surveys of residents' reactions to aircraft noise were conducted in the vicinity of airports. The findings in those surveys have supported planning and regulatory actions for the airport noise environment. Now, however, aircraft noise planning and regulations are being considered for a new environment, the en route environment. As policy makers search for bases for public policy in these new noise environments, it is appropriate to ask whether the same scientific evidence which supports airport noise policy can also support en route noise policy. Several aspects of that question are considered. An introduction establishes the scope of the present study and examines alternative study methodologies. Next, the selected study methodology is described and important assumptions are listed. The body of the paper then consists of the findings on en route issues. The final section presents findings on relevant research methods and considers priorities for further research

    Designing community surveys to provide a basis for noise policy

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    After examining reports from a large number of social surveys, two areas were identified where methodological improvements in the surveys would be especially useful for public policy. The two study areas are: the definition of noise indexes and the assessment of noise impact. Improvements in the designs of surveys are recommended which would increase the validity and reliability of the noise indexes. Changes in interview questions and sample designs are proposed which would enable surveys to provide measures of noise impact which are directly relevant for public policy

    An evaluation of study design for estimating a time-of-day noise weighting

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    The relative importance of daytime and nighttime noise of the same noise level is represented by a time-of-day weight in noise annoyance models. The high correlations between daytime and nighttime noise were regarded as a major reason that previous social surveys of noise annoyance could not accurately estimate the value of the time-of-day weight. Study designs which would reduce the correlation between daytime and nighttime noise are described. It is concluded that designs based on short term variations in nighttime noise levels would not be able to provide valid measures of response to nighttime noise. The accuracy of the estimate of the time-of-day weight is predicted for designs which are based on long term variations in nighttime noise levels. For these designs it is predicted that it is not possible to form satisfactorily precise estimates of the time-of-day weighting

    Research perspective: Time-of-day effects on noise annoyance

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    Some of the complications encountered in researching time-of-day effects on noise annoyance are reported. A conceptual framework for further research is provided. Some of the implications for the research methods that should be used are suggested

    Human response to aircraft noise

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    The human auditory system and the perception of sound are discussed. The major concentration is on the annnoyance response and methods for relating the physical characteristics of sound to those psychosociological attributes associated with human response. Results selected from the extensive laboratory and field research conducted on human response to aircraft noise over the past several decades are presented along with discussions of the methodology commonly used in conducting that research. Finally, some of the more common criteria, regulations, and recommended practices for the control or limitation of aircraft noise are examined in light of the research findings on human response

    U.S. Earnings Mobility: Comparing Survey-Based and Administrative-Based Estimates

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    Earnings mobility has been studied both at the macro level (how much of a certain kind of mobility is there in the economy?) and at the micro level (what are the correlates of change in income or position?). Many empirical mobility studies provide estimates of the amount of mobility in a country over time and the correlates of individual mobility within the income distribution. While measurement error is recognized as potentially important at both these levels, very little is known about the degree to which earnings mobility estimates are affected by measurement error. In this paper, we use a new dataset that contains individually-reported total annual labor earnings from the Survey of Income and Program Participation (SIPP) linked to employer-reported total annual labor earnings from the Social Security Administration’s Detailed Earnings Record (DER) to compare micro and macro earnings mobility estimates for the U.S. during the 1990s using the two different earnings measures. We ask how much difference it makes to mobility estimates to use administrative-based earnings rather than survey-based earnings, and we obtain two major findings. Qualitatively, we find that the results are similar but not identical when administrative-based earnings are used rather than survey-based earnings. Quantitatively, we find that magnitudes are often very different when administrative-based earnings are used rather than survey-based earnings. The administrative-based results are neither systematically larger nor systematically smaller than the survey-based ones

    Beef Producer Preferences and Purchase Decisions for Livestock Price Insurance

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    Personal interviews were conducted with beef cattle producers in Louisiana to determine their preferences and purchase decisions for livestock price insurance. Conjoint analysis was utilized to determine the importance of selected attributes of insurance policies for these producers. The characteristics of producers who prefer given attributes were also identified. Producers rated products given four economic situations to evaluate. A two-limit tobit model was used to estimate the part worth utility values for each attribute. Univariate probit models were estimated to evaluate the influence of producer characteristics on purchase decisions.conjoint, livestock price insurance, ordered probit, two-limit tobit, Agribusiness, Demand and Price Analysis, Livestock Production/Industries,

    Preferences for Livestock Revenue Insurance Among Beef Producers

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    Personal interviews were conducted with 52 Louisiana cow-calf producers to determine their preferences for a livestock revenue insurance (LRI) product. Conjoint analysis was utilized to determine the importance of selected attributes of insurance policies for these producers. Two-limit tobit models were estimated. Producers were segmented using cluster analysis based upon preferences for LRI product attributes. A multinomial logit model was used to determine differences between characteristics of producers in each cluster. Producers generally preferred higher-premium, zero-deductible products; 180-day policy length; the state price series; and an in-person method of marketing. Cluster analysis yielded three groups of preferencesPersonal interviews were conducted with 52 Louisiana cow-calf producers to determine their preferences for a livestock revenue insurance (LRI) product. Conjoint analysis was utilized to determine the importance of selected attributes of insurance policies for these producers. Two-limit tobit models were estimated. Producers were segmented using cluster analysis based upon preferences for LRI product attributes. A multinomial logit model was used to determine differences between characteristics of producers in each cluster. Producers generally preferred higher-premium, zero-deductible products, 180-day policy length, the state price series, and an in-person method of marketing. Cluster analysis yielded three groups of preferences, Agribusiness, Livestock Production/Industries,
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