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An analysis of US propane markets, winter 1996-1997

2009

In late summer 1996, in response to relatively low inventory levels and tight world oil markets, prices for crude oil, natural gas, and products derived from both began to increase rapidly ahead of the winter heating season. Various government and private sector forecasts indicated the potential...

Persistent link: https://www.econbiz.de/10009435595

Motor gasoline assessment, Spring 1997

2009

The springs of 1996 and 1997 provide an excellent example of contrasting gasoline market dynamics. In spring 1996, tightening crude oil markets pushed up gasoline prices sharply, adding to the normal seasonal gasoline price increases; however, in spring 1997, crude oil markets loosened and crude...

Persistent link: https://www.econbiz.de/10009435609

Application of a prognostic model validation system to real-time dispersion modeling

Pace, J C - 2008

The Atmospheric Release Advisory Capability (ARAC) at the Lawrence Livermore National Laboratory uses the U.S. Navy's Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS) to supply high-resolution wind data for use in its real-time dispersion modeling system. ARAC has used COAMPS...

Persistent link: https://www.econbiz.de/10009436019

Modified seasonal factors in exponential smoothing

Armstrong, J.S.; Hwang, Ho-Ling; Bandy, J. - 2008

reduce the emphasis on the seasonal adjustments when forecasts are made. The adjustments account for errors in the estimation …

Persistent link: https://www.econbiz.de/10009436702

Development of an exceedance probability streamflow forecast

Piechota, Thomas C.; Chiew, F. H.S.; Dracup, J. A.; … - 2001

This paper presents a methodology for forecasting seasonal streamflow and is an extension of a previously developed categorical streamflow forecast model that used persistence (i.e., the previous season’s streamflow) and El Niño-Southern Oscillation (ENSO) indicators. This newly developed...

Persistent link: https://www.econbiz.de/10009458745

Empirical Essays on the Elasticity of Substitution, Technical Change, and Economic Growth

Pereira, Claudiney M - 2003

We estimate the elasticity of substitution using two different production functions. The usual Constant Elasticity of Substitution (CES) production function and a Box-Cox production function for Japan (1890-1991), UK (1870-1991), and US (1890-1992; 1929-2000). The main results are that we find the...

Persistent link: https://www.econbiz.de/10009431206

Equilibrium Tuition, Applications, Admissions and Enrollment in the College Market

Fu, Chao - 2010

equilibrium. I estimate the structural parameters of the model using the NLSY 97 data, via a three-step estimation procedure to …

Persistent link: https://www.econbiz.de/10009439060

How Eighth-Grade Students Estimate with Fractions

Hanks, Audrey Linford 1981- - 2008

This study looked at what components are in student solutions to computational estimation problems involving fractions …. Past computational estimation research has focused on strategies used for estimating with whole numbers and decimals while … with fractions (Hanson & Hogan, 2000) that researched adult estimation strategies and not children’s strategies. Given the …

Persistent link: https://www.econbiz.de/10009456725

Statistical Methods for Nonlinear Dynamic Models with Measurement Error Using the Ricker Model

Resendes, David Joseph - 2011

In ecological population management, years of animal counts are fit to nonlinear, dynamic models (e.g. the Ricker model) because the values of the parameters are of interest. The yearly counts are subject to measurement error, which inevitably leads to biased estimates and adversely affects...

Persistent link: https://www.econbiz.de/10009468234

Estimation of Sector Sales and Employment Changes Associated with Solar Space and Water Heating Development

Petersen, H. Craig - 1979

There is little available information on sector-specific sales and employment impacts of a large-scale solar space and water heating industry. This study identifies those sectors of the economy which would be most affected by increased solar utilization and estimates the magnitude of the...

Persistent link: https://www.econbiz.de/10009468721