1,106 research outputs found
The Information Content of Specialist Pricing
This paper examines a process by which information-revealing prices are determined by considering the private incentives of a price-setting agent (whom we refer to as a specialist). The specialist has private information that may be (partially) revealed through his choice of a pricing rule. We define an equilibrium as a pricing rule and a response to that rule by a representative trader that maximizes the expected utilities of the specialist and the trader, conditional on each having rational expectations. By analyzing the existence and nature of this equilibrium, we attempt to develop further insights into the behavior of markets with incomplete information
Global Auditing and Accounting Confusion
The article discusses about the accounting and audit standards in the United States, which is different from one country to another due to business practices, fiscal systems and the law regulating a company. The International Federation of Accountants and the International Accounting Standards Committee aimed to a have a consistency of audit and accounting standards around the world, although these diversities can easily identify a company\u27s national origin and as a basis of the financial statements presentation
Raising Capital Overseas
The article states that more and more companies are trying to raise capital by listing their securities for sale on foreign exchanges.More and more companies are trying to raise capital by listing their securities for sale on foreign exchanges. However, the way financial statements are prepared varies from one country to the next. U.S. companies looking to raise capital abroad must consider the myriad rules regarding financial statement presentation just as foreign companies listing stock in the United States must adhere to the rules and regulations of the Securities and Exchange Commission. Similarly, the costs of reconciling U.S. accounting standards to adhere to foreign standards also can be high, so it is important that U.S. companies know the questions they will face when going global. Although the details of additional disclosures must be determined case by case, they can be developed in the context of normal corporate reporting. However, U.S. public companies should determine the nature and extent of additional disclosures in advance to provide for an orderly approach to corporate reporting and to avoid any undue delay in the listing process
A theoretical and semiemprical correction to the long-range dispersion power law of stretched graphite
In recent years intercalated and pillared graphitic systems have come under
increasing scrutiny because of their potential for modern energy technologies.
While traditional \emph{ab initio} methods such as the LDA give accurate
geometries for graphite they are poorer at predicting physicial properties such
as cohesive energies and elastic constants perpendicular to the layers because
of the strong dependence on long-range dispersion forces. `Stretching' the
layers via pillars or intercalation further highlights these weaknesses. We use
the ideas developed by [J. F. Dobson et al, Phys. Rev. Lett. {\bf 96}, 073201
(2006)] as a starting point to show that the asymptotic dependence
of the cohesive energy on layer spacing in bigraphene is universal to all
graphitic systems with evenly spaced layers. At spacings appropriate to
intercalates, this differs from and begins to dominate the power
law for dispersion that has been widely used previously. The corrected power
law (and a calculated coefficient) is then unsuccesfully employed in the
semiempirical approach of [M. Hasegawa and K. Nishidate, Phys. Rev. B {\bf 70},
205431 (2004)] (HN). A modified, physicially motivated semiempirical method
including some effects allows the HN method to be used
successfully and gives an absolute increase of about to the predicted
cohesive energy, while still maintaining the correct asymptotics
Gauge Singlet Scalars as Cold Dark Matter
In light of recent interest in minimal extensions of the Standard Model and
gauge singlet scalar cold dark matter, we provide an arXiv preprint of the
paper, published as Phys.Rev. D50 (1994) 3637, which presented the first
detailed analysis of gauge singlet scalar cold dark matter.Comment: 37 pages, 11 figures, LaTe
Rank Statistics in Biological Evolution
We present a statistical analysis of biological evolution processes.
Specifically, we study the stochastic replication-mutation-death model where
the population of a species may grow or shrink by birth or death, respectively,
and additionally, mutations lead to the creation of new species. We rank the
various species by the chronological order by which they originate. The average
population N_k of the kth species decays algebraically with rank, N_k ~ M^{mu}
k^{-mu}, where M is the average total population. The characteristic exponent
mu=(alpha-gamma)/(alpha+beta-gamma)$ depends on alpha, beta, and gamma, the
replication, mutation, and death rates. Furthermore, the average population P_k
of all descendants of the kth species has a universal algebraic behavior, P_k ~
M/k.Comment: 4 pages, 3 figure
Correlation energies of inhomogeneous many-electron systems
We generalize the uniform-gas correlation energy formalism of Singwi, Tosi,
Land and Sjolander to the case of an arbitrary inhomogeneous many-particle
system. For jellium slabs of finite thickness with a self-consistent LDA
groundstate Kohn-Sham potential as input, our numerical results for the
correlation energy agree well with diffusion Monte Carlo results. For a helium
atom we also obtain a good correlation energy.Comment: 4 pages,1 figur
Retired A Stars and Their Companions VI. A Pair of Interacting Exoplanet Pairs Around the Subgiants 24 Sextanis and HD200964
We report radial velocity measurements of the G-type subgiants 24 Sextanis
(=HD90043) and HD200964. Both are massive, evolved stars that exhibit periodic
variations due to the presence of a pair of Jovian planets. Photometric
monitoring with the T12 0.80m APT at Fairborn Observatory demonstrates both
stars to be constant in brightness to <= 0.002 mag, thus strengthening the
planetary interpretation of the radial velocity variations. 24 Sex b,c have
orbital periods of 453.8 days and 883~days, corresponding to semimajor axes
1.333 AU and 2.08 AU, and minimum masses (Msini) 1.99 Mjup and 0.86 Mjup,
assuming a stellar mass 1.54 Msun. HD200964 b,c have orbital periods of 613.8
days and 825 days, corresponding to semimajor axes 1.601 AU and 1.95 AU, and
minimum masses 1.85 Mjup and 0.90 Mjup, assuming M* = 1.44 Msun. We also carry
out dynamical simulations to properly account for gravitational interactions
between the planets. Most, if not all, of the dynamically stable solutions
include crossing orbits, suggesting that each system is locked in a mean motion
resonance that prevents close encounters and provides long-term stability. The
planets in the 24 Sex system likely have a period ratio near 2:1, while the
HD200964 system is even more tightly packed with a period ratio close to 4:3.
However, we caution that further radial velocity observations and more detailed
dynamical modelling will be required to provide definitive and unique orbital
solutions for both cases, and to determine whether the two systems are truly
resonant.Comment: AJ accepte
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