The American Academy of Business Journal

Vol.  25 * Num.2  * March 2020

The Library of Congress, Washington, DC  ISSN: 1540–7780

Online Computer Library Center * OCLC: 805078765

National Library of Australia * NLA: 42709473

The Cambridge Social Science Citation Index, CSSCI

Peer-Reviewed Scholarly Journal

Refereed Academic Journal

Indexed Journal

Since 2001

All submissions are subject to a double blind peer review process.

Main Page   *   Home   *   Scholarly Journals   *   Academic Conferences   *   Previous Issues   *   Journal Subscription


Submit Paper    *   Editorial Team    *   Tracks    *   Guideline    *   Sample Page    *   Standards for Authors / Editors

Members    *   Participating Universities    *   Editorial Policies    *   Cambridge Research Library    *   Publication Ethics


The primary goal of the journal will be to provide opportunities for business related academicians and professionals from various business related fields in a global realm to publish their paper in one source. The Journal will bring together academicians and professionals from all areas related business fields and related fields to interact with members inside and outside their own particular disciplines. The journal will provide opportunities for publishing researcher's paper as well as providing opportunities to view other's work. All submissions are subject to a double blind peer review process.  The Journal is a refereed academic journal which  publishes the  scientific research findings in its field with the ISSN 1540-7780 issued by the Library of Congress, Washington, DC.  The journal will meet the quality and integrity requirements of applicable accreditation agencies (AACSB, regional) and journal evaluation organizations to insure our publications provide our authors publication venues that are recognized by their institutions for academic advancement and academically qualified statue.  No Manuscript will be accepted without the required format.  All manuscripts should be professionally proofread before the submission.  You can use for professional proofreading / editing etc...The journal submission guideline can be seen at: submission guideline

The Journal is published two times a year, March and September. The e-mail:; Website: AABJ.  Requests for subscriptions, back issues, and changes of address, as well as advertising can be made via the e-mail address above. Manuscripts and other materials of an editorial nature should be directed to the Journal's e-mail address above.

Copyright: All rights reserved. No part of the material protected by this copyright notice may be reproduced or utilized in any form or by any means, including photocopying and recording, or by any information storage and retrieval system, without the written permission of the journal.  You are hereby notified that any disclosure, copying, distribution or use of any information (text; pictures; tables. etc..) from this web site or any other linked web pages is strictly prohibited. Request permission / Purchase article (s):

Copyright © 2001-2024 AABJ. All rights reserved.

Classification of Stock Market Price Change by Data Mining

Dr. Nursel Selver Ruzgar, Ryerson University, Toronto, Canada



In this paper, eight Canadian banks’ daily stock market price changes are examined by three data mining techniques, logistic regression, fuzzy-roughNN and genetic algorithms. Thirty-seven years of data from 1980 to 2017 obtained from NASDAQ for eight Canadian banks with 21 independent variables and one dependent variable, price, were used to classify the daily stock price changes. Daily price changes are divided into three classes, “up”, “down” and “same” according to the previous stock market daily close price. To determine which method makes the better classification, three methods run separately for each bank. Then predicted values for 2018 with each method for each bank, were compared the original 2018 data to see how the predicted values were compatible with the real values. It was seen that, among the three methods, the genetic programming algorithms classified the stock price changes well. This paper demonstrates that the genetic programming method is applicable to a wide range of practical problems pertaining to price changes. Moreover, the results show that the genetic programming is a promising alternative to the conventional methods for financial prediction.  Data mining (DM) and knowledge discovery is a family of computational methods that aim at collecting and analyzing data related to the function of a system of interest to gain a better understanding of the system (Triantaphyllou, 2010). DM attempts to formulate, analyze and implement basic induction processes that help extract meaningful information and knowledge from unstructured data. DM that aims to reveal valuable information from the overwhelming volume of data and achieve better strategic management and customer satisfaction is the process of using statistical, mathematical, artificial intelligence, and machine learning techniques to extract and identify useful information and knowledge assembled from large databases (Kusrini, 2009).


Full Text


Cited by: 2


Learning from WhatsApp’s Business Model: The World of Messaging Apps

Dr. Nadeem M. Firoz, Baruch College, CUNY, New York, NY

Atif Noor, Founder & CEO,, Baruch College, CUNY, New York, NY



The objective of this proposal is to determine WhatsApp’s positioning within the social media marketplace, analyze its strengths and weaknesses, and propose actionable strategic marketing models which will allow the service to further increase its user base by curtailing weaknesses and exponentiating strengths. This proposal will follow the service from its inception as a startup in Mountain View California to becoming the most popular messaging app in the world after being acquired by Facebook. Its features will be dissected and its value to the marketplace will be closely analyzed. The demographics, geodemographics and user segmentation of the service will be ascertained; along with its business models, marketing positioning, and SWOT analysis. Through diligent and thoughtful analysis of WhatsApp’s SWOT, viable options for growth and further market capitalization will become evident, and recommendations for implementation will be established.  WhatsApp is a cross-platform messaging and Voice over IP (VOIP) service that allows users to send text messages and video calls, along with other rich media such as audio, images, documents, and even video calls. ( The service was created by WhatsApp Inc. in Mountain View, California by founders Brian Acton and Jan Koum, who previously worked for Yahoo! ( After leaving Yahoo! in 2007, they applied to jobs at Facebook, but failed to get hired. Ironically, after the they were rejected jobs at Facebook, their company was acquired by Facebook in February 2014 for close to $19.3 billion dollars ( By early 2018, the product had accumulated over 1.5 billion users, making it the most popular messaging app in the market. (


Full Text


Collaborative Strategies in the Context of the Tourism Cluster in the Azores: A Qualitative Analysis

Antonia Canto, University of the Azores, Portugal

Anhelina Bykova, University of the Azores, Portugal

Dr. Joao Couto, University of the Azores, Portugal



The main objective of this study is to discuss the collaborative strategies within the tourism cluster on the Azores. A qualitative research framework was developed and responses obtained through interviews with 30 regional stakeholders were analyzed using the MaxQDA and NVivo programs. The results highlighted the existence of dynamics and collaboration between the regional tourism partners. The study reveals that the most dynamic partners are car rental companies, restaurants, tours companies, and hotels.  Promoting collaboration is crucial for developing a tourist destination. For collaboration to be successful, it is important to establish collaborative strategies. There are several definitions of the concept, according to Child, Faulkner, Tallman, and Tallman (2005); collaborative strategies are an attempt by organizations to achieve their goals through cooperation with other organizations rather than competing with them.  This work attempts to delineate a framework of collaborative strategies among several tourism cluster actors in the Azores region. A thorough analysis of the interviews collected from the various actors in this sector is undertaken. Particular attention is paid to the type of activity and to the location of such activity, so as to reasonably cover the tourism cluster in the Azores.  First, we present the concepts of collaborative strategies and the tourism cluster, observing their evolution and complexity, and highlight the various contributions of several researchers in this field of study. Second, the method and instruments for gathering information are presented, together with the procedures undertaken in the elaboration of this study.


Full Text


Efficiency Changes in the Home and Community-based Services of Long-term Care in Taiwan

Chia-Mei Shih, Department of Resources Engineering, National Cheng Kung University, Tainan, Taiwan

Yu-Hua Wang, Institute of Gerontology, National Cheng Kung University, Tainan, Taiwan

Dr. Li-Fan Liu, Professor, Institute of Gerontology, National Cheng Kung University, Tainan, Taiwan

Jung-Hua Wu, Department of Resources Engineering, National Cheng Kung University, Tainan, Taiwan



Global aging trends have led to dilemmas in resource allocation. Most developed or OECD countries are struggling to ensure the sustainability of their long-term care systems, and Taiwan, a developing country, is not an exception. After years of effort, Taiwan has established home and community-based services in a formal long-term care infrastructure and has developed a nationwide database on long term care. However, the cost-effectiveness of the large amount of resources invested in this system has not yet been analyzed. This study sought to examine the performance of Taiwan’s long-term care system from 2011-2016, using the Data Envelopment Analysis (DEA) based Malmquist Productivity Index (MPI) approach. The results showed a regression in average total factor productivity over 6 years (-5.5%), mostly affected by deteriorating technological change (-6.6%). During that same period of time there was an ascending trend in technical efficiency due to a dramatic increase in financial investment since 2014, which produced an overall growth of 1.1%. Long-term care is a labor-intensive industry. Our study’s findings show that, while change factors within long-term care did help to improve the efficiency of the system to some degree, what really made a difference were factors that impacted the system from exogenous factors, such as improved technology. To sustain the productivity of the long-term care system we must focus on investment in innovations. 


Full Text


The Impact of the Tohoku-Oki Earthquake on Tourism Share Prices in Taiwan

Dr. Chun-Huang Liao, Zhao Qing University, Guangdong Province, China



This study uses the event study method and the recursive Chow test to investigate the impact of the Tohoku-Oki earthquake on tourism share prices in Taiwan. Cumulative abnormal returns and structural changes in return relationships were estimated and tested. The findings show the Tohoku-Oki earthquake had a short-term negative impact on the stock returns of Taiwan’s tourism companies. Significant negative abnormal returns lasted for about 19 trading days, and the structure of the return relationships between the tourism index and market index changed in the short term after the earthquake occurred. By using hierarchical multiple regression analysis, this study found the variables of firm size, debt ratio, ratio of stock market value relative to assets, margin trading of stocks, and percentage of hotel revenue relative to sales can significantly account for the cumulative abnormal returns. To prevent such unexpected event impacts, suitable strategies of risk diversification should be undertaken by hoteliers and tourism operators.  International travel between Taiwan and Japan is very popular, not only because of the close proximity, but also to some extent because of the history of colonization. However, on March 11, 2011, the Tohoku-Oki earthquake (Tajima et al., 2013; Ito et al., 2012) suddenly shut down this busy travel line. International tourism markets between both countries encountered a situation of chaos; many tourists canceled or changed their original itineraries. This unexpected earthquake influenced Taiwan’s tourism revenue and share prices slumped suddenly. Large seismic events are rare in modern history, so they are a natural experiment and a valuable case study that cannot be reproduced (Kollias et al., 2011b; Shan and Gong, 2012).


Full Text


Copyright: All rights reserved. No part of the material protected by this copyright notice may be reproduced or utilized in any form or by any means, including photocopying and recording, or by any information storage and retrieval system, without the written permission of the journal.  You are hereby notified that any disclosure, copying, distribution or use of any information (text; pictures; tables. etc..) from this web site or any other linked web pages is strictly prohibited. Request permission / Purchase this article:

   Member: Association of American Publishers (AAP), Professional / Scholarly Publishing, New York

Member: Chamber of Commerce of Beverly Hills, Los Angeles, California.

Index: The Library of Congress, Washington, DC:    ISSN: 1540 – 7780

Index: Online Computer Library Center, OH:   OCLC: 805078765 

Index: National Library of Australia: NLA: 42709473

Index: Cambridge Social Science Citation Index, CSSCI.

Contact us  *  Site Index   *   Copyright Issues  *  About us  *  Publication Policy  *  ABDC Quality Journal List

Google Scholar Index1  *  Google Scholar Index2  *   The Cambridge Social Science Citation Index, CSSCI


  Copyright © 2001-2024 AABJ. All rights reserved. No information may be duplicated without permission from AABJ.