Results 91 to 100 of about 3,067,533 (204)
The Evolution of Interest‐Rate Models: From the Yield Curve to the Swaption Cube
Journal of Economic Surveys, EarlyView.ABSTRACT Interest‐rate modelling is often taught as a catalogue of competing stochastic equations, obscuring why models were created and why modern sell‐side desks use several simultaneously. This survey reorganises the field around five layers of a pricing architecture: curve construction; arbitrage‐free dynamics; volatility‐smile representation ...
Xuan Feng +2 more
wiley +1 more source
Privatization Under Political Ties
The Journal of Industrial Economics, EarlyView.ABSTRACT I study a product differentiation model with endogenous entry where a politically connected public firm competes with a private one. Consumers are heterogeneous in their willingness to pay. I argue that—because of political ties—the public firm may mimic the preferences of the consumer with the median willingness to pay.
Matteo Broso
wiley +1 more source
The Incentive Virtues of Performance‐Based Trade Allowances and Loss Leading
The Journal of Industrial Economics, EarlyView.ABSTRACT A retailer can boost demand for a manufacturer's product through non‐verifiable activities. Performance‐based trade allowances—rebates conditional on the retailer's successful sales efforts—help mitigate this moral hazard problem. In equilibrium, the wholesale contract includes a retail price set below cost, complemented by a rebate for ...
David Martimort, Jérôme Pouyet
wiley +1 more source
Testing Distributional Granger Causality With Entropic Optimal Transport
Journal of Time Series Analysis, EarlyView.ABSTRACT We develop a novel nonparametric test for Granger causality in distribution based on entropic optimal transport. Unlike classical mean‐based approaches, the proposed method directly compares the full conditional distributions of a response variable with and without the history of a candidate predictor.
Tao Wang
wiley +1 more source
Building transformers from neurons and astrocytes. [PDF]
Proc Natl Acad Sci U S A, 2023 Kozachkov L, Kastanenka KV, Krotov D.
europepmc +1 more source
Penalized Convex Estimation in Dynamic Location Models
Journal of Time Series Analysis, EarlyView.ABSTRACT This paper studies L1$$ {L}^1 $$‐penalized estimation for location models yt=mt+ϵt$$ {y}_t={m}_t+{\epsilon}_t $$, where mt$$ {m}_t $$ is defined by a possibly non‐Markovian recursion and ϵt$$ {\epsilon}_t $$ is a martingale difference sequence with possibly time‐varying conditional variance.
Reda Alami Chentoufi
wiley +1 more source
Optimal Portfolio Choice With Cross‐Impact Propagators
Mathematical Finance, EarlyView.ABSTRACT We consider a class of optimal portfolio choice problems in continuous time where the agent's transactions create both transient cross‐impact driven by a matrix‐valued Volterra propagator, as well as temporary price impact. We formulate this problem as the maximization of a revenue‐risk functional, where the agent also exploits available ...
Eduardo Abi Jaber +2 more
wiley +1 more source
DBST-FL: Dynamic Behavioural and Semantic Trust for Robust Federated Learning in Industrial IoT. [PDF]
Sensors (Basel)Alazab A +6 more
europepmc +1 more source
Rapid discovery of stable materials by coordinate-free coarse graining. [PDF]
Sci Adv, 2022 Goodall REA +4 more
europepmc +1 more source
Risk, Utility and Sensitivity to Large Losses
Mathematical Finance, EarlyView.ABSTRACT Risk and utility functionals are fundamental building blocks in economics and finance. In this paper we investigate under which conditions a risk or utility functional is sensitive to the accumulation of losses in the sense that any sufficiently large multiple of a position that exposes an agent to future losses has positive risk or negative ...
Martin Herdegen +2 more
wiley +1 more source