搜索结果: 1-15 共查到“经济学 o events”相关记录15条 . 查询时间(0.093 秒)
Active Postmarketing Drug Surveillance for Multiple Adverse Events
Drug Surveillance Sequential Testing Queueing Network Diffusion Approximation Health Mathematical Methods
2015/4/28
Active postmarketing drug surveillance is important for consumer safety. However, existing methods have limitations that prevent their direct use for active drug surveillance. One important considerat...
Punctuated Generosity:How Mega-events and Natural Disasters Affect Corporate Philanthropy in U.S. Communities
Natural Disasters Situation or Environment Balance and Stability Organizations Business and Community Relations Giving and Philanthropy United States
2015/4/28
This article focuses on geographic communities as fields in which human-made and natural events occasionally disrupt the lives of organizations. We develop an institutional perspective to unpack how a...
No News Is Good News: CSR Strategy and Newspaper Coverage of Negative Firm Events
Corporate Social Responsibility and Impact Crisis Management Media Newspapers Business and Community Relations Corporate Strategy
2015/4/27
One of the benefits of Corporate Social Responsibility (CSR) programs, it has been argued, is that they build up a reservoir of public good will, shielding companies in times of trouble. In this paper...
Our brand values are a set of principles that we believe in; that define who we are, what we do and how we do it. Our brand values also help us to craft what we say and how we say. Each of our values ...
Access to Capital Markets for Railroads: A Commentary on Basic Precepts and Recent Events
railroad industry transportation cost underutilized rail assets productivity of capital
2011/9/12
Discusses the financial issues related to the railroad industry in the U.S. Aspects of the country's uncompetitive transportation cost; Factors affecting the financing available to the industry; Need ...
Models for the impact of all order book events
price impact market orders limit orders cancellations market microstructure order flow
2011/7/19
We propose a general framework to describe the impact of different events in the order book,
that generalizes previous work on the impact of market orders. Two different modeling routes can be consid...
In this paper we shall prove that the plane of financial events, introduced and applied to
financial problems by the author himself (see [2], [3] and [4]) can be considered as a fibration
in two dif...
Default Clustering in Large Portfolios: Typical and Atypical Events
Large Portfolios Default Clustering Typical Atypical Events
2011/7/22
Abstract: We develop a dynamic point process model of correlated default timing in a portfolio of firms, and analyze typical and atypical default profiles in the limit as the size of the pool grows. I...
Minding impacting events in a model of stochastic variance
Heteroscedastic processes Fat-tail distributions Perpetual memory
2011/3/23
We introduce a generalisation of the well-known ARCH process, widely used for generating uncorrelated stochastic time series with long-term non-Gaussian distributions and long-lasting correlations in ...
In the Black-Scholes context we consider the probability distribution function (PDF) of financial returns implied by volatility smile and we study the relation between the decay of its tails and the ...
The price impact of order book events: market orders, limit orders and cancellations
price impact market orders limit orders cancellations market microstructure order flow
2010/10/29
While the long-ranged correlation of market orders and their impact on prices has been relatively well studied in the literature, the corresponding studies of limit orders and cancellations are scarce...
Drive for Show, Putt for Dough: Rates of Return to Golf Skills, Events Played, and Age on the PGA Tour
Golf Skills Events Played Age on the PGA Tour
2009/11/30
The “winner take all” structure of professional golf, where there i
substantial incentive to perform at one's highest ability, invites investigation
into the rates of return to golf skills on the PG...
Market response to external events and interventions in spherical minority games
Market response external events interventions spherical minority games
2010/12/17
We solve the dynamics of large spherical Minority Games (MG) in the presence of non-negligible time dependent external contributions to the overall market bid. The latter represent the actions of mar...
Return interval distribution of extreme events and long term memory
Return interval distribution extreme events long term memory
2010/12/17
The distribution of recurrence times or return intervals between extreme events is important to characterize and understand the behavior of physical systems and phenomena in many disciplines. It is we...
COMPETITION IN THE UK GAS INDUSTRY An explanation of the events occurred at St Fergus and Bacton in Summer and Autumn 1998
UK GAS INDUSTRY St Fergus and Bacton Summer and Autumn
2014/6/27
In Summer and Autumn 1998 a series of singular events occurred at the two main gas terminals on the UK mainland. At St Fergus, in Scotland, shippers wanted to input more gas than what was physically p...