Downward Sloping Demand Curves: Nasdaq-100 Additions and Deletions

2007 ◽  
Author(s):  
Oya Altinkilic ◽  
Mary J. Becker
Keyword(s):  
Demand Curves

Do Demand Curves for Stocks Slope Down?: Evidence from a Regulation Induced Supply Shock

2014 ◽  
Author(s):  
Ankit Jain ◽  
Prasanna L. Tantri ◽  
Ramabhadran S. Thirumalai
Keyword(s):  
Supply Shock ◽  
Demand Curves

scholarly journals Flexible Electricity Dispatch of an Integrated Solar Combined Cycle through Thermal Energy Storage and Hydrogen Production

Thermo ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 106-121
Author(s):  
Miguel Ángel Reyes-Belmonte ◽  
Alejandra Ambrona-Bermúdez ◽  
Daniel Calvo-Blázquez
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Hydrogen Generation ◽  
Combined Cycle ◽  
Medium Temperature ◽  
Cost Of Electricity ◽  
Demand Curves ◽  
Hydrogen Plant ◽  
Demand Coverage

In this work, the flexible operation of an Integrated Solar Combined Cycle (ISCC) power plant has been optimized considering two different energy storage approaches. The objective of this proposal is to meet variable users’ grid demand for an extended period at the lowest cost of electricity. Medium temperature thermal energy storage (TES) and hydrogen generation configurations have been analyzed from a techno-economic point of view. Results found from annual solar plant performance indicate that molten salts storage solution is preferable based on the lower levelized cost of electricity (0.122 USD/kWh compared to 0.158 USD/kWh from the hydrogen generation case) due to the lower conversion efficiencies of hydrogen plant components. However, the hydrogen plant configuration exceeded, in terms of plant availability and grid demand coverage, as fewer design constraints resulted in a total demand coverage of 2155 h per year. It was also found that grid demand curves from industrial countries limit the deployment of medium-temperature TES systems coupled to ISCC power plants, since their typical demand curves are characterized by lower power demand around solar noon when solar radiation is higher. In such scenarios, the Brayton turbine design is constrained by noon grid demand, which limits the solar field and receiver thermal power design.

AGGREGATE DEMAND CURVES: A GUIDE TO USE AND ABUSE

1982 ◽  
Vol 21 (38) ◽  
pp. 37-48 ◽  
Author(s):  
P. H. HALL ◽  
M. L. TREADGOLD
Keyword(s):  
Aggregate Demand ◽  
Demand Curves

GIFFEN EFFECT MODEL

2020 ◽  
Vol 10 (7) ◽  
pp. 1228-1245
Author(s):  
V.I. Tsurikov ◽  
Keyword(s):  
Consumer Choice ◽  
Demand Curve ◽  
Aggregate Demand ◽  
Negative Slope ◽  
Individual Values ◽  
Effect Model ◽  
Demand Curves ◽  
Income Individual ◽  
The Mathematical Model

The mathematical model of the Giffen effect proposed in the article clearly demonstrates both the effect itself and the reasons for its manifestation. The main advantages of the model include its extreme simplicity, which opens up access to the widest circle of readers, the use of standard methods for solving the consumer choice problem, and the most important fundamental agreement with the results of the field experiment of Jensen and Miller. The model shows that any good for which there is a more expensive substitute can be of little value. This or that good is endowed with the appropriate property by a particular consumer due to his or her own preferences, income level and prevailing prices. Any good of little value, including those that can only be consumed by a high-income individual, may turn out to be Giffen’s goods. Therefore, the consumption of Giffen’s product cannot be considered as evidence of the low standard of living of the consumer. According to the model, an increase in demand for an increasingly expensive low-value good, which is the essence of the Giffen paradox, is the result of optimizing a set of goods, i.e. the result of rational consumer behavior. It is shown that for the manifestation of the Giffen effect, it is necessary that the amount of funds allocated by the consumer for the purchase of a low-value good and its more expensive substitute falls into a certain rather narrow range of values. The failures of numerous and long-term studies aimed at detecting empirical manifestations of Giffen behavior in various historical events are explained by the fact that the corresponding analysis was carried out on the basis of averaged rather than individual values of demand for all categories of consumers. As a result, the negative slope of the aggregate demand curve turned out to be dominant over the positive sections of certain individual demand curves.

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