Results 211 to 220 of about 78,871 (265)

Refinements and Generalizations of the Shannon Lower Bound via Extensions of the Kraft Inequality. [PDF]

Entropy (Basel)
Merhav N.
europepmc   +1 more source

Demographic Dynamics and International Trade: Stylized Facts and Theoretical Insights

Journal of Economic Surveys, EarlyView.
ABSTRACT Demographic change within a country has economic repercussions for other countries through international transactions. Ongoing shifts in population size and age structure across countries have important implications for international trade, operating through changes in market size, consumption preferences, and labor supply.
Kumuthini Sivathas
wiley   +1 more source

An efficient coverage path planning method for UAV in complex concave regions. [PDF]

Sci Rep
Wu W, Wang Z, Lin L, Chang X, Tian L.
europepmc   +1 more source

Optimal Simple Ratings

The Journal of Industrial Economics, EarlyView.
ABSTRACT We study optimal simple rating systems that partition sellers into a finite number of tiers. We show that optimal ratings must be threshold partitions, and that for linear supply and Cournot competition with constant marginal cost, optimal thresholds solve a k‐means clustering problem requiring only the quality distribution.
Hugo Hopenhayn, Maryam Saeedi
wiley   +1 more source

Linear Causal Discovery with Interventional Constraints. [PDF]

Mach Learn
Guo Z, Dong F.
europepmc   +1 more source

From gateway to value ladder—The curious case of online mutual aid in China

Journal of Risk and Insurance, EarlyView.
Abstract This study examines how InsurTech‐enabled information provision, specifically the disclosure of claimant information previously unavailable in conventional insurance, influences individuals' insurance uptake. We leverage Mutual Aid (MA) platforms as a natural context to examine how socially framed loss information, peer influence, and salience
Ze Chen, Runhuan Feng, Miao Guo, Tianyang Wang   +3 more
wiley   +1 more source

Portfolio Optimization: A Neurodynamic Approach Based on Spiking Neural Networks. [PDF]

Biomimetics (Basel)
Khan AH, Mohammed AM, Li S.
europepmc   +1 more source

The influence of negative interest rates on European life insurance companies

Journal of Risk and Insurance, EarlyView.
Abstract Between 2016 and 2022, life insurers in several European countries experienced negative long‐term interest rates, which put pressure on their business models. The aim of this paper is to empirically investigate the impact of negative interest rates on the stock performance of life insurers.
Nicolaus Grochola
wiley   +1 more source

Median geometry for spaces with measured walls and for groups. [PDF]

Math Ann
Chatterji I, Druţu C.
europepmc   +1 more source

Sequential Outlier Detection in Nonstationary Time Series

Journal of Time Series Analysis, EarlyView.
ABSTRACT A novel method for sequential outlier detection in nonstationary time series is proposed. The method tests the null hypothesis of “no outlier” at each time point, addressing the multiple testing problem by bounding the error probability of successive tests, using extreme‐value theory. The asymptotic properties of the test statistic are studied
Florian Heinrichs, Patrick Bastian, Holger Dette   +2 more
wiley   +1 more source