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1.
The law of one price (LOOP) is an essential foundation of both the pure theory of trade and monetary theory. Strictly speaking, the law relates to prices of individual commodities. However, empirical tests of LOOP have often relied on aggregated data. In this paper, a model is derived and estimated using price data for 15 selected inputs in New Zealand agriculture. The results offer no support for the LOOP in the short run, and the results for the long run are mixed. It may be inappropriate, therefore, to assume that the LOOP holds generally in modelling exercises, particularly when models are used for policy purposes. 相似文献
2.
Prof. Dr. H. Störmer 《Metrika》1980,27(1):153-164
Zusammenfassung Es sei {F
,(x); –<<, >0} mitF
,(x)=F((x–)/)–F(x) eine standardisierte Verteilungsfunktion — die Familie der zulässigen Verteilungsfunktionen. Der (früher eingeführte) verallgemeinerte nichtzentralet-Test für die Hypothese {PP
0} mitP:=F
,(x
0) gegen die Alternative {P>P
0} zum Niveau wird mit dem entsprechenden nichtparametrischen Test (Test für die Hypothese {pP
0} über den Parameterp einer Binomialverteilung gegen die Alternative {p>P
0}) verglichen. Für dent-Test wird die relative asymptotische Effizienz bestimmt.Beide Tests lassen sich als Tests für das zur WahrscheinlichkeitP
0 gehörende Quantil einer Verteilungsfunktion interpretieren. Der klassische zentrale Student-Test ergibt sich als Spezialfall (F(x)=(x),P
0=0,5).
Summary Let {F ,(x);–<<, >0} withF ,(x 0):=F((x–)/–F(x) a standarized distribution function — the family of admissible distribution functions. The (earlier introduced) generalized noncentralt-test for the hypothesis {PP 0} withP:=F ,(x 0) against the alternative {P>P 0} at level of significance is compared with the corresponding nonparametric test (Binomial test). The relative asymptotic efficiency of thet-test is determined. Both kinds of tests can be interpreted as quantiltests. In caseF(x)=(x),P 0=0,5 one gets the classical central Student-test.相似文献
3.
Sjur Didrik Flåm 《Economic Theory》1995,6(3):511-518
Summary We exhibit a quite natural, adaptive process generated by price-taking, noncooperative firms, supplying the same market. Under rather mild conditions, that process, being driven by marginal profits, converges to a market clearing, Cournot-Nash equilibrium. Namely, it suffices for convergence that cost functions be strictly convex and that the law of demand holds. Randomness in revenues and costs is accommodated.Support from Ruhrgas is gratefully acknowledged. 相似文献
4.
This paper describes a new approach for closing the gap between the tools for strategic goal management and operational management in Pharmaceutical R&D. The strategic level may concern with expectation of sales, rising from new products and with total R & D budget. The operational level concerns with project selection, project and multiproject management problems, solution of project related technical problems, determination of the size of the various functions and the functional management. This new method combines the R & D project portfolio management with a steady state concept allowing the attainment of a constant number of projects under development and a continuous full use of the capacity available. 相似文献
5.
Enterprise risk management (ERM) is a process that manages all risks in an integrated, holistic fashion by controlling and coordinating any offsetting risks across the enterprise. This research investigates whether the adoption of the ERM approach affects firms' cost of equity capital. We restrict our analysis to the U.S. insurance industry to control for unobservable differences in business models and risk exposures across industries. We simultaneously model firms' adoption of ERM and the effect of ERM on the cost of capital. We find that ERM adoption significantly reduces firm's cost of capital. Our results suggest that cost of capital benefits are one answer to the question how ERM can create value. 相似文献
6.
We analyse the interaction between the dividend policy and the decision on investment in a growth opportunity of a liquidity
constrained firm. This leads us to study a mixed singular control/optimal stopping problem for a diffusion that we solve quasi-explicitly
by establishing a connection with an optimal stopping problem. We characterize situations where it is optimal to postpone
the distribution of dividends in order to invest at a subsequent date in the growth opportunity. We show that uncertainty
and liquidity shocks have an ambiguous effect on the investment decision.
相似文献
7.
This paper examines the generalization of the regulated production function. It characterizes the set of admissible regulatory
constraints that are compatible with the existence of a regulated production function in a sufficiently weak framework to
encompass the usual rate-of-return constraints à la Averch and Johnson and value constraints. 相似文献
8.
To learn more about the role of line managers in the implementation of HR practices, we propose and test a model of line managers' perceptions of enabling HR practices on the one hand and employee outcomes on the other. In a field study of 89 line managers and 631 employees, we observed that the relationship between line managers' perceptions of enabling HR practices and employees' intrinsic motivation, affective organizational commitment, and turnover intention was mediated by employees' perceived supervisor support. Line managers' perceptions of enabling HR practices, in turn, were predicted by line managers' perceived quality of the HR training they received. Theoretical and practical implications and directions for future research are discussed. 相似文献
9.
Bo Carlsson Pontus Braunerhjelm Maureen McKelvey Christer Olofsson Lars Persson Håkan Ylinenpää 《Small Business Economics》2013,41(4):913-930
Research on entrepreneurship has flourished in recent years and is evolving rapidly. This article explores the history of entrepreneurship research, how the research domain has evolved, and its current status as an academic field. The need to concretize these issues stems partly from a general interest in defining the current research domain and partly from the more specific tasks confronting the prize committee of the Global Award for Entrepreneurship Research. Entrepreneurship has developed in many sub-fields within several disciplines—primarily economics, management/business administration, sociology, psychology, economic and cultural anthropology, business history, strategy, marketing, finance, and geography—representing a variety of research traditions, perspectives, and methods. We present an analytical framework that organizes our thinking about the domain of entrepreneurship research by specifying elements, levels of analysis, and the process/context. An overview is provided of where the field stands today and how it is positioned relative to the existing disciplines and new research fields upon which it draws. Areas needed for future progress are highlighted, particularly the need for a rigorous dynamic theory of entrepreneurship that relates entrepreneurial activity to economic growth and human welfare. Moreover, applied work based on more careful design as well as on theoretical models yielding more credible and robust estimates seems also highly warranted. 相似文献
10.
In this paper, the procedures and problems of the changeover to the euro are reviewed. The legal elements involved are discussed as are the psychological aspects. Various practical problems and proposed solutions are described. The possibility of resistance from the consumers in certain segments of the Member State populations is also addressed. One reason for any such resistance might be that for many citizens, the change of currency appears to have little bearing on their everyday concerns.Particular attention is devoted to the scenario for the period 1 January to 1 July 2002, during which coins and notes in euros and national monetary units can be in circulation at the same time. 相似文献