Now showing items 1-20 of 43

    • Amenities, affordability, and housing vouchers 

      Bieri, David S.; Dawkins, Casey J. (Blackwell Publishing Inc., 2018-06-19)
      Against the background of an emerging rental affordability crisis, we examine how the standard rule that households should not spend more than 30% of their income on housing expenditures leads to inefficiencies in the ...
    • Asset Prices under Random Risk Preferences 

      Tsang, Kwok Ping; Tserenjigmid, Gerelt
      We consider an overlapping-generations model with two types of investors: the stable investors have constant risk aversion, but the unstable investors have random levels of risk aversion across different generations. ...
    • Beamforming when the sound velocity is not precisely known 

      Hinich, Melvin J. (Acoustical Society of America, 1980-08)
      Beamforming is an integral part of most signal processingsystems in active or passive sonars. The delays used to generate a beam are functions of the sound velocity, which depends on temperature, salinity, and pressure. ...
    • Bearing estimation using a large towed array 

      Hinich, Melvin J.; Rule, William (Acoustical Society of America, 1975)
      When a towed array of hydrophones is significantly nonlinear due to bending, ordinary linear array beamforming gives a biased estimate of the true source bearing. By processing the array as a sequence of smaller aperture ...
    • Bearing estimation using a perturbed linear array 

      Hinich, Melvin J. (Acoustical Society of America, 1977-06)
      A linear hydrophone array which is towed in the ocean is subject to snakelike bending. If the array is processed as if it was truly linear, the author has shown that the bending causes a deflection of the measured bearing ...
    • Beyond Optimal Forecasting 

      Ashley, Richard A. (Virginia Tech, 2006-11-04)
      While the conditional mean is known to provide the minimum mean square error (MSE) forecast – and hence is optimal under a squared-error loss function – it must often in practice be replaced by a noisy estimate when model ...
    • Cloud-Sourcing: Using an Online Labor Force to Detect Clouds and Cloud Shadows in Landsat Images 

      Yu, Ling; Ball, Sheryl B.; Blinn, Christine E.; Moeltner, Klaus; Peery, Seth; Thomas, Valerie A.; Wynne, Randolph H. (MDPI, 2015-02-26)
      We recruit an online labor force through Amazon.com’s Mechanical Turk platform to identify clouds and cloud shadows in Landsat satellite images. We find that a large group of workers can be mobilized quickly and relatively ...
    • Credible Granger-Causality Inference with Modest Sample Lengths: A Cross-Sample Validation Approach 

      Ashley, Richard A.; Tsang, Kwok Ping (MDPI, 2014-03-25)
      Credible Granger-causality analysis appears to require post-sample inference, as it is well-known that in-sample fit can be a poor guide to actual forecasting effectiveness. However, post-sample model testing requires an ...
    • Demand for electricity in Virginia 

      Murray, M. P.; Spann, R.; Pulley, L.; Beauvais, E. (MIT Press, 1978)
    • Economic models for TMDL assessment and implementation 

      Bosch, Darrell J.; Ogg, Clayton; Osei, Edward; Stoecker, Arthur L. (American Society of Agricultural and Biological Engineers, 2006)
      The TMDL assessment and implementation process is designed to achieve designated uses for water bodies, which are set by states based on criteria including perceived costs and benefits. Setting water quality goals based ...
    • An Elementary Method for Detecting and Modeling Regression Parameter Variation Across Frequences With an Application to Testing the Permanent Income Hypothesis 

      Boon, Tan Hui; Ashley, Richard (Virginia Tech, 1997-03)
      A simple technique for directly testing the parameters of a time series regression model for instability across frequencies is presented. The method can be easily implemented in the time domain, so parameter instability ...
    • Estimating bearing when the source is endfire to an array 

      Hinich, Melvin J. (Acoustical Society of America, 1979-03)
      Consider the problem of estimating the direction of arrival of a plane wave using a linear array of length L with M sensors. Let 0 denote the direction with respect to the array axis. Assume that we know that 0 >0. The ...
    • Estimating signal and noise using a random array 

      Hinich, Melvin J. (Acoustical Society of America, 1982-01)
      This paper presents approximations for the rms error of the maximum likelihood estimator of the direction of a plane wave incident on a random array. The sensor locations are assumed to be realizations of independent, ...
    • Estimating the consumption and investment demands for housing and their effect on housing tenure status 

      Ioannides, Y. M.; Rosenthal, S. S. (MIT Press, 1994-02)
      Theoretical work suggests that families live in owner-occupied housing if their investment demand for housing exceeds their consumption demand for housing. Using household data from the 1983 Survey of Consumer Finances, ...
    • Frequency-wave number array processing 

      Hinich, Melvin J. (Acoustical Society of America, 1981-03)
      Most array signal processing systems use delay-and-sum beamforming to estimate source bearings. This paper demonstrates the close relationship between beamforming and frequency-wavenumber spectrum analysis. The latter ...
    • Frustration and Anger in Games 

      Battigalli, Pierpaolo; Dufwenberg, Martin; Smith, Alec (Virginia Tech, 2015-08-24)
      Frustration, anger, and aggression have important consequences for economic and social behavior, concerning for example monopoly pricing, contracting, bargaining, traffic safety, violence, and politics. Drawing on insights ...
    • Identification of Coefficients in a Quadratic Moving Average Process Using the Generalized Method of Moments 

      Ashley, Richard A.; Patterson, Douglas M. (Virginia Tech, 2002-06-21)
      The output of a causal, stable, time-invariant nonlinear filter can be approximately represented by the linear and quadratic terms of a finite parameter Volterra series expansion. We call this representation the “quadratic ...
    • International Evidence On The Oil Price-Real Output Relationship: Does Persistence Matter? 

      Ashley, Richard; Tsang, Kwok Ping (Virginia Tech, 2013-08-28)
      The literature on the relationship between real output growth and the growth rate in the price of oil, including an allowance for asymmetry in the impact of oil prices on output, continues to evolve. Here we show that a ...
    • Land and Racial Wealth Inequality 

      Miller, Melinda C. (American Economic Association, 2011)
      ...Explanations for the persistent and large racial wealth gap largely fall into two categories. First, racially discriminatory policies in credit markets, labor markets, school finance, and other institutions may have ...