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31.
In the current study, we identify the announcements that trigger substantial changes in the behaviour of the 10-year US Treasury market, without using the surprise component and, therefore, expectational data. We use a novel model-free approach based on extreme market movements related to price returns, volatility and traded volumes. Our findings corroborate those of previous studies, which were based on expectational data. More importantly, though, we identify two additional announcements (Oil Inventories and the Mortgage Applications), which have not been previously reported. These findings are primarily important to financial analysts and investors. 相似文献
32.
Ian?J.?BatemanEmail author Roy?Brouwer Stavros?Georgiou Nick?Hanley Fernando?Machado Susana?Mourato Caroline?Saunders 《Environmental and Resource Economics》2005,31(1):47-72
We present the results of a natural experiment to test how variations in exogenous risk levels affect resultant willingness to pay (WTP) for risk reduction. The case study presented considers WTP for reductions in the skin cancer risks associated with exposure to solar UV radiation. A common design contingent valuation survey is conducted in four countries, across which variation in geographical latitude and genetic mix mean that exogenous risks differ substantially. Survey respondents were presented with both a private and public good route for affecting risk reduction. In both cases, results confirm that once adjustment had been made for expected relationships with other covariates (such as income and risk averting behaviour), valuation responses for both goods conformed to expectations with the ordering of values across countries reflecting the ordering of scientifically established health risks. This suggests that links between values and objective health risks may be observed within such situations and provides a justification for continuing research into more natural representations of risk and risk reductions in order to yield consistent and robust measures of associated values. 相似文献
33.
Stavros Panageas 《Journal of Monetary Economics》2010,57(1):101-116
The termination of a representative financial firm due to excessive leverage may lead to substantial bankruptcy costs. A government in the tradition of Ramsey (1927) may be inclined to provide transfers to the firm so as to prevent its liquidation and the associated deadweight costs. It is shown that the optimal taxation policy to finance such transfers exhibits procyclicality and history dependence, even in a complete market. These results are in contrast with pre-existing literature on optimal fiscal policy, and are driven by the endogeneity of the transfer payments that are required to salvage the financial firm. 相似文献
34.
A firm's termination leads to bankruptcy costs. This may create an incentive for outside stakeholders or the firm's debtholders to bail out the firm as bankruptcy looms. Because of this implicit guarantee, firm shareholders have an incentive to increase volatility in order to exploit the implicit protection. However, if they increase volatility too much they may induce the guarantee-extending parties to “walk away.” I derive the optimal risk management rule in such a framework and show that it allows high volatility choices, while net worth is high. However, risk limits tighten abruptly when the firm's net worth declines below an endogenously determined threshold. Hence, the model reproduces the qualitative features of existing risk management rules, and can account for phenomena such as “flight to quality.” 相似文献
35.
The purpose of this article is twofold. Motivated by the heated debate on the financialization of commodities, we examine the existence of herding behaviour in metal commodities futures. In order to identify any time-dependent properties reflected in time-varying parameters, we employ the overlapping rolling window regression technique. The empirical evidence confirms a time-varying anti-herding behaviour before the global financial crisis and the absence of herding or anti-herding behaviour during the crisis. Next we attempt to formally establish the link between the documented anti-herding behaviour and portfolio management with the use of dynamic conditional correlations via the DCC-GARCH family multivariate modelling. After specifying the correlations, an in-sample recursive dynamic Markowitz portfolio is constructed and monitored. By doing so, we attribute the anti-herding behaviour to different portfolio positioning and rebalancing. On the other hand, in the absence of herding or anti-herding behaviour, we document a shift in the correlations and covariances of the commodity futures especially during the crisis, resulting in a decrease of the portfolio weights together with a substantial cash flow towards the risk-free asset. 相似文献
36.
Stavros Ioannides 《Review of Political Economy》2013,25(1):45-71
Modern supporters of the Austrian school of economics maintain that their critical stance towards impure forms of economic organisation - such as the mixed economy - grew out of the arguments of Mises and Hayek during the socialist calculation debate of the 1930s. The paper assesses the two theorists, contributions in the debate and argues that their ideas cannot provide the basis for a general rejection of impure forms of economic organisation. First of all, and contrary to most modern Austrians, who consider the contributions of Mises and Hayek as essentially consistent, it is argued that Hayek's critique of socialism is much more effective than Mises' as it rests on his concept of tacit knowldge and on an evolutionary account of the emergence of capitalist institutions. However, the paper goes on to argue that, if Hayek's critique of state intervention is to have any relevance for contemporary capitalist economies, it must be in a position to show the non-viability not only of a fully centrally planned economy of the Soviet type but also of the mixed economy. It is argued that it is precisely in this that Hayek's evolutionism fails, for his teleological approach is not persuasive in ruling out the possibility of impure forms of capitalism in a manner that is consistent with truly evolutionary - i.e. non-teleological - ideas. 相似文献
37.
In this article an asymmetric autoregressive conditional heteroskedasticity (ARCH) model is applied to some well-known financial indices (DAX30, FTSE20, FTSE100 and SP500), using a rolling sample of constant size, in order to investigate whether the values of the estimated parameters of the model change over time. Although, there are changes in the estimated parameters reflecting that structural properties and trading behaviour alter over time, the ARCH model adequately forecasts the one-day-ahead volatility. A simulation study has been carried out to investigate whether the time-variant attitude holds in the case of a generated ARCH data process revealing that either in that case the rolling-sampled parameters are time varying. The rolling analysis is also applied to estimate the parameters of a Levy-stable distribution. The empirical findings support that the stable parameters are also time variant. 相似文献
38.
Stavros Polykarpou Michael Barrett Eivor Oborn Torsten Oliver Salge David Antons Rajiv Kohli 《Information and Organization》2018,28(4):153-169
Despite important research contributions on the financial and operational dimensions of information technology (IT) value, justifying health IT (HIT) investments remains a difficult and enduring issue for IT managers. Recent work has expanded our understanding of HIT value, by focusing on the initial resource allocation stage, and through conceptualizations of value across multiple dimensions. Building on these developments, we adopt a performative perspective to examine the research question of how practitioners justify early stage HIT investments, with a focus on reputational value. We explored this question through a comparative field study of two hospital organizations in the English National Health Service (NHS). We found that practitioners' temporally orientated framing practices matter in justifying HIT investments, enacting different possibilities for reputational value. We develop a process model to explain these dynamics and highlight the mutability of reputational value, which can lead to different possibilities for restoring, enhancing, or maintaining reputation. We conclude by discussing the implications for justifying HIT investments. 相似文献
39.
Stavros Degiannakis David Duffy George Filis 《Scottish journal of political economy》2014,61(4):348-370
This article investigates the time‐varying correlation between the EU12‐wide business cycle and the initial EU12 member‐countries based on Scalar‐BEKK and multivariate Riskmetrics model frameworks for the period 1980–2012. The paper provides evidence that changes in the business cycle synchronization correspond to major economic events that have taken place at a European level. In the main, business cycle synchronization until 2007 had moved in a direction positive for the operation of a single currency, suggesting that the common monetary policy was less costly in terms of lost flexibility at the national level. However, as a result of the Great Recession of 2007 and the subsequent Eurozone Crisis, a number of periphery countries, most notably Greece, have experienced desynchronization of their business cycles with the EU12‐wide cycle. Nevertheless, for most countries, any questions regarding the optimality and sustainability of the common currency area in Europe should not be attributed to a lack of cyclical synchronization. 相似文献
40.