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Detecting self-organisational change in economic processes exhibiting logistic growth

Foster, John; Wild, Phillip - In: Journal of Evolutionary Economics 9 (1999) 1, pp. 109-133

This paper offers an econometric methodology for the detection of self-organisational change (defined in terms of the presence of time irreversibility, structural change and fundamental uncertainty) in economic processes that follow logistic diffusion growth paths in historical time. The...

Persistent link: https://www.econbiz.de/10005622490

A Fixed Point Theorem for Discontinuous Functions

Talman, Dolf; Herings, P.J.J.; van der Laan, G.; Yang, Z.F. - Tilburg University, Center for Economic Research - 2005

AMS classifications: 54H25, 65K10, 49J53, 68W25

Persistent link: https://www.econbiz.de/10011091823

A mathematical model for contingent claim pricing in a preannounced policy

Chen, Fen-Ying - In: Economics Bulletin 29 (2009) 4, pp. 27-27

This paper presents a mathematical model for contingent claim pricing in a preannounced policy. There are some properties in the model. First, one can distinguish the preannouncement effects on the mean and volatility of asset returns. Second, the European call option pricing solution in the...

Persistent link: https://www.econbiz.de/10008562919

Sensitivity analysis via simulation in the presence of discontinuities

Signahl, Mikael - In: Computational Statistics 60 (2004) 1, pp. 29-51

In this paper we address the problem of estimating the mean derivative when the entity containing the parameter has jumps. The methods considered are finite differences, infinitesimal perturbation analysis and the likelihood ratio score function. We calculate the difference between the...

Persistent link: https://www.econbiz.de/10010759452

Some fixed point theorems for discontinuous mappings.

Bich, Philippe - Maison des Sciences Économiques, Université Paris 1 … - 2006

This paper provides a fixed point theorem à la Schauder, where the mappings considered are possibly discontinuous. Our main result generalizes and unifies several well-known results.

Persistent link: https://www.econbiz.de/10005670957

A Fixed Point Theorem for Discontinuous Functions

Herings, Jean-Jacques; Laan, Gerard van der; Talman, Dolf; … - Tinbergen Instituut - 2004

Any function from a non-empty polytope into itself that is locally gross direction preserving is shown to have the fixed point property. Brouwer's fixed point theorem for continuous functions is a special case. We discuss the application of the result in the area of non-cooperative game...</p>

Persistent link: https://www.econbiz.de/10011257532

Convergency and Divergency of Functional Coefficient Weak Instrumental Variables Models

Cai, Zongwu; Li, Henong - 2013

In this paper, we consider a simultaneous equations model under a functional coefficient representation for the structural equation of interest and adopt the local-to-zero assumptions as in Staiger and Stock (1997) and Hahn and Kuersteiner (2002) on the coefficients of the instruments in the...

Persistent link: https://www.econbiz.de/10010892074

Strategic foresight in a changing world

Wayland, Rebecca - In: Foresight 17 (2015) 5, pp. 444-459

areas of uncertainty and discontinuity. Part II provides a conceptual framework outlining four types of change: incremental …

Persistent link: https://www.econbiz.de/10014743467

Revisiting business strategy under discontinuity

Ghezzi, Antonio - In: Management Decision 51 (2013) 7, pp. 1326-1358

and internal change, which increasingly takes the form of radical discontinuity. However, emergent strategy models are … under discontinuity. Design/methodology/approach – The study builds its contribution on a theoretical framework (constituted … by a literature review on discontinuity, BM, VN and RM), supplemented by two longitudinal case studies on companies which …

Persistent link: https://www.econbiz.de/10014935511

Microstructure noise in the continuous case: the pre-averaging approach

Jacod, Jean; Li, Yingying; Mykland, Per A.; Podolskij, Mark - 2007

This paper presents a generalized pre-averaging approach for estimating the integrated volatility. This approach also provides consistent estimators of other powers of volatility in particular, it gives feasible ways to consistently estimate the asymptotic variance of the estimator of the...

Persistent link: https://www.econbiz.de/10010300691