The Stability of Coalitions when Countries are Heterogeneous

2012 ◽  
Author(s):  
Jakob Neitzel
Keyword(s):  
Stability Of Coalitions ◽  
The Stability

The Stability of Coalitions on Roll Calls in the House of Representatives

1962 ◽  
Vol 56 (1) ◽  
pp. 58-65 ◽  
Author(s):  
William H. Riker ◽  
Donald Niemi
Keyword(s):  
House Of Representatives ◽  
Voting Behavior ◽  
The Other ◽  
Considerable Degree ◽  
Congressional Voting ◽  
Rational Explanation ◽  
Stability Of Coalitions ◽  
The Stability ◽  
Do So

In some recent discussions of roll calls in Congress a model of interacting blocs has often been adopted and to a considerable degree verified. This model assumes the existence of several fairly cohesive blocs along with, perhaps, some unattached members. Furthermore, it is assumed that some of these blocs are fairly consistently opposed on roll calls, while others ally now with one side, now with the other. This model is attractive, not only because it accords with the usage of journalists, but also because it seems to provide a rational explanation of what sometimes appears to be the almost random confusion of Congressional voting behavior. As the evidence here presented suggests, however, this model is somewhat too neat and requires modification to account for shifting alliances over (often relatively short periods of) time. In a trial, reasoning from the assumptions of this model, we attempted to pick out those blocs and members who shifted from side to side. We were, however, unable to do so except in a few instances, largely, we believe, because the model as heretofore developed is static.

Enhancing the Stability of Coalitions in Cross-Border Transmission Expansion Planning

2021 ◽  
pp. 1-1
Author(s):  
Andrey Igorevich Churkin ◽  
Enzo E. Sauma ◽  
David Pozo ◽  
Janusz W. Bialek ◽  
Nikolay Korgin
Keyword(s):  
Expansion Planning ◽  
Cross Border ◽  
Transmission Expansion Planning ◽  
Transmission Expansion ◽  
Stability Of Coalitions ◽  
The Stability

scholarly journals Discourse Network Analysis of Nuclear Narratives

10.15788/npf2 ◽  
2021 ◽  
Author(s):  
Kuhika Gupta ◽  
◽  
Joseph Ripberger ◽  
Andrew Fox ◽  
Hank Jenkins-Smith ◽  
...  
Keyword(s):  
Network Analysis ◽  
The United States ◽  
Narrative Discourse ◽  
Policy Framework ◽  
Policy Outcomes ◽  
Group Stability ◽  
Stability Of Coalitions ◽  
The Stability ◽  
Narrative Policy Framework ◽  
Future Work

This study combines insight from discourse network analysis (DNA) and the Narrative Policy Framework (NPF) to develop a new approach to studying narrative discourse within and across policy coalitions. The approach facilitates examination of narrative cohesion, which may impact the stability of coalitions and the impact of narrative discourse on policy change. We demonstrate the value of the approach by using it to study meta narratives on Twitter within and across groups of policy actors who support and oppose the expansion of nuclear energy in the United States. The approach reveals a variety of patterns that are unlikely to be seen using more common approaches to narrative policy analysis. Most notably, there were signs of narrative cohesion within both groups, but there were also slight fissures that may indicate strategic efforts to communicate with different constituents or fault lines that threaten group stability. These findings set the stage for future work on the relationship between narrative cohesion and policy outcomes.

scholarly journals Cooperative Management of Ecosystem Services: Coalition Formation, Landscape Structure and Policies

2021 ◽  
Author(s):  
Francois Bareille ◽  
Matteo Zavalloni ◽  
Meri Raggi ◽  
Davide Viaggi
Keyword(s):  
Ecosystem Services ◽  
Spatial Autocorrelation ◽  
Coalition Formation ◽  
Landscape Structure ◽  
Policy Instruments ◽  
Fruit Tree ◽  
Natural Habitats ◽  
Habitat Area ◽  
Stability Of Coalitions ◽  
The Stability

AbstractA growing body of literature shows that full-cooperation among farmers to manage productive ecosystem services would yield gains with respect to uncoordinated approaches. The public good feature of these ecosystem services may, however, hinder the emergence of a cooperative solution at the landscape scale. In this paper, we introduce in a coalition formation game a spatially-explicit bioeconomic model of fruit pollination, where pollinaton depends on the distance to the choosen location of natural habitats. We analyse: (i) which coalitions are stable; (ii) what benefits they provide; (iii) how cooperation depends on the initial landscape structure; and (iv) how policy instruments affect cooperation. The theoretical model presents the rationality of cooperation but, due to the detailed heterogeneity and complex spatial interactions among farms, we use a numerical example to determine the stable coalitions. We find that only small coalitions are stable and that the benefits of cooperation decrease when the spatial autocorrelation of fruit tree covers increase. Policy instruments can increase the interest for cooperation but per-hectare payments and minimum participation rules may reduce the habitat area at the margin (by decreasing the stability of coalitions). Price premium for the coalition members increase the habitat area but its budget-effectiveness decreases as the spatial autocorrelation of fruit tree covers increase.

Open discussion

1982 ◽  
Vol 99 ◽  
pp. 605-613
Author(s):  
P. S. Conti
Keyword(s):  
Buenos Aires ◽  
Large Mass ◽  
List Type ◽  
Common Phenomenon ◽  
Open Discussion ◽  
The Stability ◽  
Ring Nebulae

Conti: One of the main conclusions of the Wolf-Rayet symposium in Buenos Aires was that Wolf-Rayet stars are evolutionary products of massive objects. Some questions:–Do hot helium-rich stars, that are not Wolf-Rayet stars, exist?–What about the stability of helium rich stars of large mass? We know a helium rich star of ∼40 MO. Has the stability something to do with the wind?–Ring nebulae and bubbles : this seems to be a much more common phenomenon than we thought of some years age.–What is the origin of the subtypes? This is important to find a possible matching of scenarios to subtypes.

Symmetric Multistep Methods Revisited: II. Numerical Experiments

1999 ◽  
Vol 173 ◽  
pp. 309-314 ◽  
Author(s):  
T. Fukushima
Keyword(s):  
Multistep Methods ◽  
Computational Time ◽  
Integration Time ◽  
Implicit Methods ◽  
Symmetric Methods ◽  
Celestial Bodies ◽  
The Stability ◽  
Predictor Corrector ◽  
Symmetric Multistep Methods ◽  
Integration Errors

AbstractBy using the stability condition and general formulas developed by Fukushima (1998 = Paper I) we discovered that, just as in the case of the explicit symmetric multistep methods (Quinlan and Tremaine, 1990), when integrating orbital motions of celestial bodies, the implicit symmetric multistep methods used in the predictor-corrector manner lead to integration errors in position which grow linearly with the integration time if the stepsizes adopted are sufficiently small and if the number of corrections is sufficiently large, say two or three. We confirmed also that the symmetric methods (explicit or implicit) would produce the stepsize-dependent instabilities/resonances, which was discovered by A. Toomre in 1991 and confirmed by G.D. Quinlan for some high order explicit methods. Although the implicit methods require twice or more computational time for the same stepsize than the explicit symmetric ones do, they seem to be preferable since they reduce these undesirable features significantly.

Uniformity of Magnification from Different Electron Microscopes

1967 ◽  
Vol 25 ◽  
pp. 32-33
Author(s):  
Godfrey C. Hoskins ◽  
V. Williams ◽  
V. Allison
Keyword(s):  
Diffraction Grating ◽  
The Other ◽  
Carbon Replica ◽  
Electron Microscopes ◽  
The Stability

The method demonstrated is an adaptation of a proven procedure for accurately determining the magnification of light photomicrographs. Because of the stability of modern electrical lenses, the method is shown to be directly applicable for providing precise reproducibility of magnification in various models of electron microscopes.A readily recognizable area of a carbon replica of a crossed-line diffraction grating is used as a standard. The same area of the standard was photographed in Phillips EM 200, Hitachi HU-11B2, and RCA EMU 3F electron microscopes at taps representative of the range of magnification of each. Negatives from one microscope were selected as guides and printed at convenient magnifications; then negatives from each of the other microscopes were projected to register with these prints. By deferring measurement to the print rather than comparing negatives, correspondence of magnification of the specimen in the three microscopes could be brought to within 2%.

Effect of Improved ThO2 Particle Dispersion in Nickel on High-Temperature Strength

1970 ◽  
Vol 28 ◽  
pp. 444-445
Author(s):  
E. R. Kimmel ◽  
H. L. Anthony ◽  
W. Scheithauer
Keyword(s):  
High Temperature ◽  
Metal Matrix ◽  
Oxide Particle ◽  
Oxide Phase ◽  
Dislocation Motion ◽  
Particle Dispersion ◽  
High Temperature Strength ◽  
Strengthening Effect ◽  
Oxide Particles ◽  
The Stability

The strengthening effect at high temperature produced by a dispersed oxide phase in a metal matrix is seemingly dependent on at least two major contributors: oxide particle size and spatial distribution, and stability of the worked microstructure. These two are strongly interrelated. The stability of the microstructure is produced by polygonization of the worked structure forming low angle cell boundaries which become anchored by the dispersed oxide particles. The effect of the particles on strength is therefore twofold, in that they stabilize the worked microstructure and also hinder dislocation motion during loading.

An Analysis of Dissociation of Molecules in a High Resolution Electron Microscope

1973 ◽  
Vol 31 ◽  
pp. 486-487
Author(s):  
Mihir Parikh
Keyword(s):  
Electron Microscope ◽  
High Resolution ◽  
Cross Sections ◽  
Resolving Power ◽  
Peak Intensity ◽  
Molecular Film ◽  
Resolution Electron ◽  
Dissociation Cross Section ◽  
High Resolution Electron Microscope ◽  
The Stability

It is well known that the resolution of bio-molecules in a high resolution electron microscope depends not just on the physical resolving power of the instrument, but also on the stability of these molecules under the electron beam. Experimentally, the damage to the bio-molecules is commo ly monitored by the decrease in the intensity of the diffraction pattern, or more quantitatively by the decrease in the peaks of an energy loss spectrum. In the latter case the exposure, EC, to decrease the peak intensity from IO to I’O can be related to the molecular dissociation cross-section, σD, by EC = ℓn(IO /I’O) /ℓD. Qu ntitative data on damage cross-sections are just being reported, However, the microscopist needs to know the explicit dependence of damage on: (1) the molecular properties, (2) the density and characteristics of the molecular film and that of the support film, if any, (3) the temperature of the molecular film and (4) certain characteristics of the electron microscope used

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