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11.
Hedging in the Possible Presence of Unspanned Stochastic Volatility: Evidence from Swaption Markets 总被引:2,自引:0,他引:2
This paper examines whether higher order multifactor models, with state variables linked solely to underlying LIBOR‐swap rates, are by themselves capable of explaining and hedging interest rate derivatives, or whether models explicitly exhibiting features such as unspanned stochastic volatility are necessary. Our research shows that swaptions and even swaption straddles can be well hedged with LIBOR bonds alone. We examine the potential benefits of looking outside the LIBOR market for factors that might impact swaption prices without impacting swap rates, and find them to be minor, indicating that the swaption market is well integrated with the LIBOR‐swap market. 相似文献
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Summary We consider in this paper the transient behaviour of the queuing system in which (i) the input, following a Poisson distribution,
is in batches of variable numbers; (ii) queue discipline is ‘first come first served’, it being assumed that the batches are
pre-ordered for service purposes; and (iii) service time distribution is hyper-exponential withn branches. The Laplace transform of the system size distribution is determined by applying the method of generating functions,
introduced in queuing theory byBailey [1]. However, assuming steady state conditions to obtain, the problem is completely solved and it is shown that by suitably
defining the traffic intensity factor,ϱ, the value,p
0, of the probability of no delay, remains the same in this case of batch arrivals also as in the case of single arrivals.
The Laplace transform of the waiting time distribution is also calculated in steady state case from which the mean waiting
time may be calculated. Some of the known results are derived as particular cases. 相似文献
14.
This paper explores how informal information channels impact mutual fund performance. We measure the strengths of two location‐based information channels: 1) information transfers among fund managers (fund‐fund links) and 2) transfers between managers and the companies in which they invest (fund‐company links). We find that each channel increases investment performance in the absence of the other, but decreases it when acting in combination. Stock selection associated with the presence of one channel, but the absence of the other, earns positive future returns. Our results indicate that the economic benefits of informal information channels depend critically on the nature of their interactions. 相似文献
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17.
Is There a Case for Industrial Policy? A Critical Survey 总被引:2,自引:0,他引:2
What are the underlying rationales for industrial policy? Doesempirical evidence support the use of industrial policy forcorrecting market failures that plague the process of industrialization?This article addresses these questions through a critical surveyof the analytical literature on industrial policy. It also reviewssome recent industry successes and argues that public interventionshave played only a limited role. Moreover, the recent ascendanceand dominance of international production networks in the sectorsin which developing countries once had considerable successimplies a further limitation on the potential role of industrialpolicies as traditionally understood. Overall, there appearsto be little empirical support for an activist government policyeven though market failures exist that can, in principle, justifythe use of industrial policy. 相似文献
18.
Farheen Mujeeb Khan Suhail Ahmad Khan Khalid Shamim Yuvika Gupta Shariq I. Sherwani 《International Journal of Consumer Studies》2023,47(3):953-976
The purpose of this study was to explore the relationship between online reviews and ratings through text mining and empirical techniques. An Indian food delivery portal ( Zomato.com ) was used, where 50 restaurants on Presence Across Nation (PAN) basis were selected through stratified random sampling. A total of 2530 reviews were collected, scrutinized, and analysed. Using the NVivo software for qualitative analysis, seven themes were identified from collected reviews, out of which, the ‘delivery’ theme was explored further for identifying sub-themes. Linear regression modelling was used to identify the variables affecting delivery ratings and sentiment analysis was also performed on the identified sub-themes. Regression results revealed that hygiene and pricing (delivery subthemes) demonstrated lower delivery ratings. These variables can be established as indicators for restaurants and related online food delivery services to build their business model around them. Similarly, negative sentiments were observed in pricing and hygiene sub-themes. Restaurants and online food services can enhance hygiene levels of their food delivery process in order to receive higher delivery ratings. Similarly, pricing of food items can be modified such that customers are not deterred from ordering the items—food and ordering service do not become cost-prohibitive. This study devised a standardized methodology for analysing vast amounts of online user-generated content (UGC). Findings from this study can be extrapolated to other sectors and service industries such as, tourism, cleaning, transportation, hospitals and engineering especially during the pandemic. 相似文献
19.
In this essay, the authors rejoin the debate about financial incentive effectiveness. They (a) briefly review the state of the literature in 1998, (b) highlight new meta‐analytic findings and update conclusions regarding the financial incentives–performance relationship, (c) address the myth that financial incentives erode intrinsic motivation, (d) provide explanations for the presumed failure of financial incentives and (e) offer some concluding thoughts and suggestions for future research. 相似文献
20.
Abstract. We conduct a welfare comparison of MFN and tariff discrimination in an oligopoly model of trade between two exporting countries and one importing country. While MFN dominates tariff discrimination from a world welfare perspective when exporting countries are asymmetric with respect to either cost or market structure, such need not be the case when both types of asymmetries co‐exist. In particular, when high‐cost exporters are merged and the cost disadvantage of the merged unit relative to competing firms is of intermediate magnitude, tariff discrimination can be welfare preferred to MFN (even when the average tariff is actually lower under MFN). JEL classification: F13, F12 相似文献