Results 31 to 40 of about 193,988 (291)

Hints [PDF]

open access: yes, 1995
The systematic use of hints in the learning-from-examples paradigm is the subject of this review. Hints are the properties of the target function that are known to us independently of the training examples.
Abu-Mostafa, Yaser S.
core   +2 more sources

How efficient is the Johannesburg Stock Exchange really?

open access: yesSouth African Journal of Economic and Management Sciences, 2018
Background: There are various studies that confirm the efficiency of the Johannesburg Stock Exchange (JSE), implying that there are no opportunities for active portfolio managers to earn excess returns over the long run.
André Heymans, Leonard Santana
doaj   +1 more source

A Composite Index for Measuring Stock Market Inefficiency

open access: yesComplexity, 2022
Market inefficiency is a latent concept, and it is difficult to be measured by means of a single indicator. In this paper, following both the adaptive market hypothesis (AMH) and the fractal market hypothesis (FMH), we develop a new time-varying measure ...
Raffaele Mattera   +2 more
doaj   +1 more source

A Critical Survey on Efficient Market Hypothesis (EMH), Adaptive Market Hypothesis (AMH) and Fractal Markets Hypothesis (FMH) Considering Their Implication on Stock Markets Behavior

open access: yesOvidius University Annals. Economic Sciences Series, 2022
The fundamental objective of our research study is to provide a critical analysis on Efficient Market Hypothesis (EMH), Adaptive Market Hypothesis (AMH) and Fractal Markets Hypothesis (FMH) considering their impact on stock markets behavior. Efficient Market Hypothesis is one of the pillars of modern finance and it is built on the paradigm that any ...
Cristi Spulbar   +2 more
openaire   +2 more sources

Testing the Adaptive Market Hypothesis and Time-Varying Efficiency in the Indian Equity Market [PDF]

open access: yesColombo Business Journal
The study examines the adaptive market hypothesis (AMH) as an evolutionary principle of the alternative efficient market hypothesis in the Indian stock market (Sensex and Nifty50) on the daily return from April 2014 to May 2020.
Nang Biak Sing, Rajkumar Giridhari Singh
doaj   +1 more source

A Test of the Adaptive Market Hypothesis using a Time-Varying AR Model in Japan

open access: yes, 2016
This study examines the adaptive market hypothesis (AMH) in Japanese stock markets (TOPIX and TSE2). In particular, we measure the degree of market efficiency by using a time-varying model approach.
Akihiko Noda   +20 more
core   +1 more source

Revisiting efficiency in MENA stock markets during political shocks: evidence from a multi-step approach

open access: yesHeliyon, 2021
In this paper, we attempt to investigate the efficiency of emerging stock markets by considering the advent of dramatic country-specific events. In other words, we analyze and rank the weak-form efficiency levels of emerging stock markets based on a ...
Besma Hkiri   +3 more
doaj   +1 more source

Temporal Trends in and Associations With Nonsteroidal Anti‐inflammatory Drug Prescription in Adult and Pediatric Patients With Inflammatory Bowel Disease

open access: yesArthritis Care &Research, EarlyView.
Objective Recent inflammatory bowel disease (IBD) treatment guidelines have recommended against nonsteroidal anti‐inflammatory drug (NSAID) use despite prevalent musculoskeletal symptoms and opioid overuse in this population. Given the discordance between changing national guidelines and potential clinical utility, we sought to assess national temporal
Adam S. Mayer   +5 more
wiley   +1 more source

Toward Scalable Solutions for Silver‐Based Gas Diffusion Electrode Fabrication for the Electrochemical Conversion of CO2 – A Perspective

open access: yesAdvanced Functional Materials, EarlyView.
In this study, the preparation techniques for silver‐based gas diffusion electrodes used for the electrochemical reduction of carbon dioxide (eCO2R) are systematically reviewed and compared with respect to their scalability. In addition, physics‐based and data‐driven modeling approaches are discussed, and a perspective is given on how modeling can aid ...
Simon Emken   +6 more
wiley   +1 more source

Calendar Anomalies, Market Regimes, and the Adaptive Market Hypothesis in African Stock Markets

open access: yesCentral European Management Journal, 2019
Purpose: This paper examines the changing behavior of two calendar anomalies in African stock returns – the month-of-the-year and the intra-month effects – and their implications for the adaptive market hypothesis (AMH).
Obalade Adefemi A.   +1 more
doaj   +1 more source

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