scholarly journals Spacecraft-Charging Mitigation of a High-Power Electron Beam Emitted by a Magnetospheric Spacecraft: Simple Theoretical Model for the Transient of the Spacecraft Potential

2018 ◽  
Vol 123 (8) ◽  
pp. 6424-6442 ◽  
Author(s):  
F. Lucco Castello ◽  
G. L. Delzanno ◽  
J. E. Borovsky ◽  
G. Miars ◽  
O. Leon ◽  
...  
Author(s):  
Federico Lucco Castello ◽  
Gian Luca Delzanno ◽  
Joseph E. Borovsky ◽  
Omar Leon ◽  
Grant Miars ◽  
...  

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Riccardo Camboni ◽  
Paola Valbonesi

AbstractWe empirically investigate incumbents’ and entrants’ bids on an original dataset of 192 scoring rule auctions for canteen services in Italy. Our findings show that winning rebates are lower (i.e., prices paid by the public buyer are higher) when the contract is awarded to the incumbent supplier. This result is not explained by the observable characteristics of the auction or the service awarded. We develop a simple theoretical model showing that the result is consistent with a setting in which the buyer exploits specific information on the incumbent supplier’s production cost.


Entropy ◽  
2021 ◽  
Vol 23 (8) ◽  
pp. 1007
Author(s):  
Michał Ramsza

The present paper reports simulation results for a simple model of reference group influence on market choices, e.g., brand selection. The model was simulated on three types of random graphs, Erdos–Renyi, Barabasi–Albert, and Watts–Strogatz. The estimates of equilibria based on the simulation results were compared to the equilibria of the theoretical model. It was verified that the simulations exhibited the same qualitative behavior as the theoretical model, and for graphs with high connectivity and low clustering, the quantitative predictions offered a viable approximation. These results allowed extending the results from the simple theoretical model to networks. Thus, by increasing the positive response towards the reference group, the third party may create a bistable situation with two equilibria at which respective brands dominate the market. This task is easier for large reference groups.


2000 ◽  
Author(s):  
Vladimir I. Perevodchikov ◽  
V. N. Shapenko ◽  
V. F. Martynov ◽  
P. M. Stalkov ◽  
A. L. Shapiro

2014 ◽  
Vol 21 (1) ◽  
pp. 013104 ◽  
Author(s):  
O. Dumbrajs ◽  
K. A. Avramidis ◽  
J. Franck ◽  
J. Jelonnek

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