activity
20122026
most citedA Test of the Adaptive Market Hypothesis using a Time-Varying AR Model in Japan

89 citations · 303 across the 16 of their papers we have counts for

collaborators

16 papers

econ.GN2026

Wartime Controls, Political Connections, and the Pricing of Zaibatsu Rents in Japan, 1930-1943

Keiichi Morimoto, Akihiko Noda, Takenobu Yuki

This paper examines how wartime economic controls shaped stock-price formation in Japan from 1930 to 1943. We develop a four-portfolio asset-pricing model in which zaibatsu affilia…

q-fin.ST2023

On the Time-Varying Structure of the Arbitrage Pricing Theory using the Japanese Sector Indices

Koichiro Moriya, Akihiko Noda

This paper is the first study to examine the time instability of the APT in the Japanese stock market. In particular, we measure how changes in each risk factor affect the stock ri…

q-fin.ST2022

Time Instability of the Fama-French Multifactor Models: An International Evidence

Koichiro Moriya, Akihiko Noda

This paper investigates the time-varying structure of Fama and French's (1993; 2015) multi-factor models using Fama and MacBeth's (1973) two-step estimation based on the rolling wi…

q-fin.ST2021

Examining the Dynamic Asset Market Linkages under the COVID-19 Global Pandemic

Akihiko Noda

This study examines the dynamic asset market linkages under the COVID-19 global pandemic based on market efficiency, in the sense of Fama (1970). Particularly, we estimate the join…

q-fin.ST2020

Evaluating the Financial Market Function in Prewar Japan using a Time-Varying Parameter Model

Kenichi Hirayama, Akihiko Noda

This paper explores when the financial market lost the price formation function in prewar Japan in the sense of Fama's (1970) semi-strong form market efficiency using a new dataset…

q-fin.ST2019

Measuring the Time-Varying Market Efficiency in the Prewar and Wartime Japanese Stock Market, 1924-1943

Kenichi Hirayama, Akihiko Noda

This study explores the time-varying structure of market efficiency in the prewar and wartime Japanese stock market using a new market capitalization-weighted stock price index, th…

q-fin.ST2019★ 67 cited

On the Evolution of Cryptocurrency Market Efficiency

Akihiko Noda

This study examines whether the efficiency of cryptocurrency markets (Bitcoin and Ethereum) evolve over time based on Lo's (2004) adaptive market hypothesis (AMH). In particular, w…

stat.ME2017★ 5 cited

An Alternative Estimation Method of a Time-Varying Parameter Model

Mikio Ito, Akihiko Noda, Tatsuma Wada

A non-Bayesian, regression-based or generalized least squares (GLS)-based approach is formally proposed to estimate a class of time-varying AR parameter models. This approach has p…

q-fin.ST2017

Discretion versus Policy Rules in Futures Markets: A Case of the Osaka-Dojima Rice Exchange, 1914-1939

Mikio Ito, Kiyotaka Maeda, Akihiko Noda

We investigate the relationship between market efficiency of rice futures transaction in Osaka and the Japanese government intervention in rice distributions by directly buying and…

q-fin.ST2016★ 1 cited

Time-Varying Comovement of Foreign Exchange Markets

Mikio Ito, Akihiko Noda, Tatsuma Wada

A time-varying cointegration model for foreign exchange rates is presented. Unlike previous studies, we allow the loading matrix in the vector error correction (VEC) model to be va…

q-fin.GN2016★ 2 cited

Market Integration in the Prewar Japanese Rice Markets

Mikio Ito, Kiyotaka Maeda, Akihiko Noda

This paper examines the integration process of the Japanese major rice markets (Tokyo and Osaka) from 1881 to 1932. Using a non-Bayesian time-varying vector error correction model,…

q-fin.ST2014

The Futures Premium and Rice Market Efficiency in Prewar Japan

Mikio Ito, Kiyotaka Maeda, Akihiko Noda

This paper studies the interrelation between spot and futures prices in the two major rice markets in prewar Japan from the perspective of market efficiency. Applying a non-Bayesia…

q-fin.GN2014★ 2 cited

Market Efficiency and Government Interventions in Prewar Japanese Rice Futures Markets

Mikio Ito, Kiyotaka Maeda, Akihiko Noda

This study analyzes how colonial rice trade in prewar Japan affected its rice market, considering several government interventions in the two rice futures exchanges in Tokyo and Os…

q-fin.ST2012★ 89 cited

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

Akihiko Noda

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-varyi…

q-fin.ST2012★ 66 cited

International Stock Market Efficiency: A Non-Bayesian Time-Varying Model Approach

Mikio Ito, Akihiko Noda, Tatsuma Wada

This paper develops a non-Bayesian methodology to analyze the time-varying structure of international linkages and market efficiency in G7 countries. We consider a non-Bayesian tim…

q-fin.ST2012★ 71 cited

The Evolution of Stock Market Efficiency in the US: A Non-Bayesian Time-Varying Model Approach

Mikio Ito, Akihiko Noda, Tatsuma Wada

A non-Bayesian time-varying model is developed by introducing the concept of the degree of market efficiency that varies over time. This model may be seen as a reflection of the id…