Results 261 to 270 of about 167,916,266 (299)
Some of the next articles are maybe not open access.
The Dis-Economics of Speed Limit
SSRN Electronic Journal, 2013Speed limit is imposed for some purposes: oil saving and safety, for example. This paper proves that none is justified. Speed limit reduces road capacity, or equivalently stated more roads are needed for the same traffic flow. This paper shows how traffic economists have misunderstood the traffic flow curve, and that some even have mistook it as a ...
openaire +1 more source
SPEED: A Semantics-Based Pipeline for Economic Event Detection
2010Nowadays, emerging news on economic events such as acquisitions has a substantial impact on the financial markets. Therefore, it is important to be able to automatically and accurately identify events in news items in a timely manner. For this, one has to be able to process a large amount of heterogeneous sources of unstructured data in order to ...
Frederik Hogenboom +6 more
openaire +3 more sources
Economics and Politics of High-Speed Rail
2012The technological revolution linked to high speed rail (HSR) has been accompanied by myths and claims about its contribution to society and the economy. Although HSR is unquestionably a technological advance that has become a symbol of modernity, this review and analysis of the international experiences shows that the conditions necessary to have a ...
Daniel Albalate, Germà Bel
openaire +1 more source
Applied Energy, 1984
Abstract The seasonal performances, accounting for steady state conditions and on/off cycling losses, of a conventional fixed speed, a two speed, and a variable speed vapour compression heat pump have been determined for the annual heating demand of a large detached house.
C.J. Marquand +3 more
openaire +1 more source
Abstract The seasonal performances, accounting for steady state conditions and on/off cycling losses, of a conventional fixed speed, a two speed, and a variable speed vapour compression heat pump have been determined for the annual heating demand of a large detached house.
C.J. Marquand +3 more
openaire +1 more source
Selected Economic Data, Accuracy vs. Reporting Speed
Journal of the American Statistical Association, 1968In this article, the trade-off between accuracy and reporting speed is analyzed for three widely used monthly time series: retail sales, the book value of inventories in manufacturing and trade, and employees in nonagricultural establishments. The effect of early errors in these series on the preliminary and provisional GNP estimates is also examined ...
H. O. Stekler, Susan W. Burch
openaire +1 more source
An economic theory of the distribution of traffic speeds
Journal of Urban Economics, 1984Abstract A Cournot-Nash equilibrium model of the distribution of speeds in vehicular traffic is presented. The analysis reveals the possibilities of Pareto-optimal speed limit regulation, of gasoline as a Giffen, but not necessarily an inferior good, and of multiple traffic-flow maximums with respect to density.
openaire +1 more source
The Economics and Politics of High-Speed Rail
2012The technological revolution linked to high speed rail (HSR) has been accompanied by myths and claims about its contribution to society and the economy. Although HSR is unquestionably a technological advance that has become a symbol of modernity, this review and analysis of the international experiences shows that the conditions necessary to have a ...
Daniel Albalate, Germa Bel
openaire +1 more source
Economic high-speed running of railways
Electronics and Power, 1975Railway engineers have for some years been accelerating their understanding of those branches of engineering science applicable to the development of techniques leading to new equipment to meet changing market needs. Carrying passengers is more than half British Rail's total business, and this article describes the growth in technology devoted to ...
openaire +1 more source
Light Economics In High-speed Photography
Optical Engineering, 1963A figure of merit, called the Transfer Efficiency, may be calculated or measured for any camera based upon the exposure and the radiance of the subject required to produce a density of 1.0 on the film. The Transfer Efficiency of a camera serves to calibrate it so that the luminosity of events may be determined from measurements of film density. It also
openaire +1 more source
The instantaneous speed of adjustment assumption and stability of economic models
Economic Theory, 1995zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +2 more sources