Results 111 to 120 of about 168,604 (284)

Tackling nonlinear price impact with linear strategies

open access: yesMathematical Finance, Volume 35, Issue 2, Page 422-440, April 2025.
Abstract Empirical studies in various contexts find that the price impact of large trades approximately follows a power law with exponent between 0.4 and 0.7. Yet, tractable formulas for the portfolios that trade off predictive trading signals, risk, and trading costs in an optimal manner are only available for quadratic costs corresponding to linear ...
Xavier Brokmann   +3 more
wiley   +1 more source

The fundamental theorem of asset pricing with and without transaction costs

open access: yesMathematical Finance, Volume 35, Issue 2, Page 567-609, April 2025.
Abstract We prove a version of the fundamental theorem of asset pricing (FTAP) in continuous time that is based on the strict no‐arbitrage condition and that is applicable to both frictionless markets and markets with proportional transaction costs. We consider a market with a single risky asset whose ask price process is higher than or equal to its ...
Christoph Kühn
wiley   +1 more source

The Kontsevich constants for the volume of the moduli of curves and topological recursion

open access: yes, 2010
We give an Eynard-Orantin type topological recursion formula for the canonical Euclidean volume of the combinatorial moduli space of pointed smooth algebraic curves. The recursion comes from the edge removal operation on the space of ribbon graphs. As an
Chapman, Kevin M.   +2 more
core  

Endogenous Distress Contagion in a Dynamic Interbank Model: How Possible Future Losses May Spell Doom Today

open access: yesMathematical Finance, EarlyView.
ABSTRACT We introduce a dynamic and stochastic interbank model with an endogenous notion of distress contagion, arising from rational worries about future defaults and ensuing losses. This entails a mark‐to‐market valuation adjustment for interbank claims, leading to a forward‐backward approach to the equilibrium dynamics whereby future default ...
Zachary Feinstein, Andreas Søjmark
wiley   +1 more source

Research and Analysis of Maximum Likelihood Parameter Identification Based on The Recursion of Longdongnan Economic Model

open access: diamond, 2021
Xuan Wang   +5 more
openalex   +1 more source

Gricean metacommunication

open access: yesMind &Language, EarlyView.
Three main approaches exist for finessing the cognitive demands of Grice's model of communication (a notorious problem): namely, deflationism, modularity, and interpretivism. Here, I consider each in light of human metacommunication, a phenomenon that has been neglected in foundational discussions of Gricean communication.
Ronald J. Planer
wiley   +1 more source

Structure and Computation

open access: yesNoûs, EarlyView.
ABSTRACT It is a truism of mathematics that differences between isomorphic number systems are irrelevant to arithmetic. This truism is deeply rooted in the modern axiomatic method and underlies most strands of arithmetical structuralism, the view that arithmetic is about some abstract number structure.
Balthasar Grabmayr
wiley   +1 more source

Why Are All the Sets All the Sets?

open access: yesNoûs, EarlyView.
ABSTRACT Necessitists about set theory think that the pure sets exists, and are the way they are, as a matter of necessity. They cannot explain why the sets (de rebus) are all the sets. This constitutes the Ur‐Objection against necessitism; it is the primary motivation cited by potentialists about set theory.
Tim Button
wiley   +1 more source

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