Effect of Information Technology Investment on Organisational Productivity and Growth of Small and Medium Scale Enterprises in Developing Countries: A Case of Sachet and Table Water Industries in Lagos State, Nigeria

The objective of this paper is to determine the effect of information technological investment on employee’s output performance. Subject for the study consisted of seventy employees of sachet and table water manufacturing industries, Lagos, Nigeria. Data for the study were collected through a well-structured questionnaire delivered to the workers of the sachet and table water companies. We used F test, T test, regression and correlation to test our hypotheses whether information technology usage in production processes , work environment and management style boost up  the output performance  of an employees. The findings of the study showed that there exist strong positive relationship and significant effect between aggregate output, technology usage, work environment, and management style and that the technological usage in production processes has the highest contribution to boost aggregate output performance of an employees in sachet and table water manufacturing companies. Keywords: Information Technology, Output, Performance, Manufacturing Companies, Work Environment, Management Style

Testing the joint stock market efficiency of OPEC countries

The study investigates the joint market efficiency hypothesis of the OPEC countries by obtaining monthly stock price data from seven OPEC countries from January, 2005 to April, 2016.  The study confirms the risk-return tradeoff in the OPEC stock markets.  While most relationships are positive only a pair of country shows strong negative association   Results of both parametric and nonparametric tests indicate that all OPEC members’ monthly stock return, except Qatar, are not weak-efficient. This implies that not all OPEC stock markets are efficient.  Meanwhile, the study finds that current monthly stock return of one country member can be predicted using the historical monthly price movement of another OPEC member.  As a whole, the monthly stock price of OPEC countries are not jointly weak efficient.  Recommendations were offered based on these important discoveries