Results 61 to 70 of about 2,635,604 (303)

Sustainable Development of Urban Metro System: Perspective of Coordination between Supply and Demand

open access: yesInternational Journal of Environmental Research and Public Health, 2021
Metro systems are gradually becoming more and more crucial in promoting the economy and society in cities. However, various challenges such as financial resources and the efficiency of utilizing these metro plans bring difficulties for metro construction.
Ying-Qiao Zhu   +4 more
semanticscholar   +1 more source

GRO-Bagging Day-Ahead Power Curve Forecasting Model Based on Multi-Cycle Feature Extraction

open access: yesIEEE Access
Power loads usually have multiple cycles, and the traditional forecasting methods only use the historical loads under various types of cycles together as input features to construct the forecasting model, ignoring the deep features under multiple cycles.
Yaoxian Liu   +4 more
doaj   +1 more source

Cigarette demand and supply in Africa

open access: yesTobacco Induced Diseases, 2018
Background Since the tobacco epidemic is moving from developed to developing countries, it is important to understand trends in cigarette demand and supply.
Nicole Vellios   +2 more
doaj   +1 more source

A Matter of Definition: Is There Truly a Shortage of School Principals? [PDF]

open access: yes, 2003
Analyzes the shortage of principals in basic economic terms of supply and demand. Examines the supply of candidates, and the realities of the demand for principals.
James Harvey   +3 more
core  

Demand and supply shock symmetry across Polish voivodeships

open access: yesStudia Regionalne i Lokalne, 2018
The aim of this paper is to evaluate the symmetry of demand and supply shocks affecting Polish voivodeships and to assess the risk of asymmetric shocks in the future. The study employs the SVAR-based Blanchard and Quah (1989) decomposition as modified by
Paweł Gajewski
doaj   +1 more source

Entanglement between Demand and Supply in Markets with Bandwagon Goods [PDF]

open access: yes, 2012
Whenever customers' choices (e.g. to buy or not a given good) depend on others choices (cases coined 'positive externalities' or 'bandwagon effect' in the economic literature), the demand may be multiply valued: for a same posted price, there is either a
A. Orléan   +50 more
core   +6 more sources

Multi-objective optimization method for power supply and demand balance in new power systems

open access: yesInternational Journal of Electrical Power & Energy Systems
The large amount of source and load uncertainty in new power systems poses challenges to the optimization of power supply and demand balance. The traditional optimization methods have not fully considered the uncertainty characteristics of different ...
Jiaxi Li   +9 more
doaj   +1 more source

The global food crisis : supply and demand revisited [PDF]

open access: yes, 2015
This study aims to show that the volatility in food prices between 2008 and 2011 cannot be explained merely by the market fundamentals of demand and supply. While global changes in demand and supply are bringing about radical changes to the food equation,
Sammut, Vince
core  

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