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181.
This paper considers politico-economic cycles that do not depend on the exogenous electoral cycles. More precisely, the paper develops a positive model of intertemporal subsidy strategies for an authoritarian and dynastic government. It will be shown — applying the Hopf bifurcation theorem — that cyclical strategies, i.e. waves of regulation, populism alternating with deregulation, cuts in social programmes, etc., may be optimal. 相似文献
182.
Diana R. Franz Ramesh P. Rao Niranjan Tripathy 《The Journal of Financial Research》1995,18(3):311-327
Microstructure theory contends that dealers' bid-ask spreads should vary intertemporally with changes in the asymmetric information component of the spread. Corporate theory suggests that stock repurchase announcements signal management's private information to the securities markets. An examination of dealers' spread behavior around firms' open market repurchases in the NASDAQ market reveals a decline in spreads adjusted for dealers' inventory-holding and order-processing costs. This decline is attributed to a reduction in informed trading risk associated with the open market repurchase announcements. 相似文献
183.
Franz Gehrels 《Atlantic Economic Journal》1997,25(3):227-233
This paper summarizes some findings with respect to optimal growth when saving and the state of the arts are endogenous, natural resources shrink, and the numbers of goods and basic factors are possibly large. Outcomes of some numerical experiments are reported. The dynamic-programming algorithm is used for time-optimization and linear programming for instantaneous optimization. Progress can plausibly balance out depletion, without the help of capital accumulation. Many goods can produce a multiplicity of maximal extreme points in solution space, from which the productioin-possibility frontier becomes a multiple-dimensional hyperplane, moving outward over time.Presidential Address presented at the Forty-Third International Atlantic Economic Conference, London, England, March 11–18, 1997. 相似文献
184.
185.
Franz Sitzmann 《Heilberufe》2009,61(10):16-19
Nosokomiale Infektionen - Multiresistente Mikroorganismen haben sich weltweit zu einem gro?en Problem entwickelt. Neben den
Methicillin-resistenten Staphylokokken (MRSA) steigen auch die Resistenzzahlen anderer Mikrobenarten dramatisch. Insbesondere
kritisch kranke Patienten sind durch sie gef?hrdet. Doch wie sieht ein angemessener Umgang mit Problemkeimen aus? Franz Sitzmann
diskutiert übliche Strategien und zeigt Alternativen auf. 相似文献
186.
Philipp Harms David Stefanovits Josef Teichmann Mario V. Wüthrich 《Mathematical Finance》2018,28(3):757-799
The analytical tractability of affine (short rate) models, such as the Vasi?ek and the Cox–Ingersoll–Ross (CIR) models, has made them a popular choice for modeling the dynamics of interest rates. However, in order to properly account for the dynamics of real data, these models must exhibit time‐dependent or even stochastic parameters. This breaks their tractability, and modeling and simulating become an arduous task. We introduce a new class of Heath–Jarrow–Morton (HJM) models that both fit the dynamics of real market data and remain tractable. We call these models consistent recalibration (CRC) models. CRC models appear as limits of concatenations of forward rate increments, each belonging to a Hull–White extended affine factor model with possibly different parameters. That is, we construct HJM models from “tangent” affine models. We develop a theory for continuous path versions of such models and discuss their numerical implementations within the Vasi?ek and CIR frameworks. 相似文献
187.
A method based on transformations of well-known solutions of term structure equations is presented in order to incorporate Martin Barlow's spot price model for electricity into a model for future prices on electricity. The setting for the evolution of term structures is chosen in the spirit of Da Prato and Zabczyk. 相似文献
188.
Franz Peter Lang 《Intereconomics》1984,19(3):129-133
The world economy is threatening to find itself in a vicious circle of escalating protectionism. Franz Peter Lang explains the dangers and consequences of this. Gary Banks argues that the “new protectionism” is not so much a temporary by-product of the recession as the external manifestation of internal domestic struggles between vested interests and the public interest, and pleads for the establishment of a “transparency institution”. 相似文献