IOSR Journal Of Humanities And Social Science (IOSR-JHSS) Volume 16, Issue 5 (Sep. - Oct. 2013), PP 46-51 e-ISSN: 2279-0837, p-ISSN: 2279-0845. www.Iosrjournals.Org www.iosrjournals.org 46 | Page Production Scheduling and Corporate Productivity Performance in the Nigerian Manufacturing Industry 1 G.I. Umoh, 2 Ify Harcourt Wokocha, 1 Management Department, Faculty of Management Sciences, University of Port Harcourt, Choba, Port Harcourt. Nigeria. 2 Office Technology and Management, School of Management Sciences, Rivers State College of Arts and Science, Rumuola, Port Harcourt. Nigeria. Abstract: Operations and production managers have for long identified that production scheduling affects Corporate Productivity Performance of firms in the manufacturing industry. Studies on the influence of production scheduling mechanisms on firms’ performance often overlook the possibility of it being taken for granted by managers in the course of manufacturing. This paper investigates the extent to which Production Scheduling, had affected the Corporate Productivity Performance of the Nigerian manufacturing industry. In this respect Corporate Productivity Performance is measured in the areas of cost minimization, enhanced equity capital and growth. Three hypotheses were formulated and questionnaire were distributed to eighty respondents in the eighty sampled manufacturing firms from the one hundred in the industry, quoted in the Stock Exchange(Fact Book 2009). Sixty two copies of the questionnaire were retrieved. These with the financial statements of the firms were used for the analysis. From its findings, the study revealed that production scheduling truly has insignificant impacts on Corporate Productivity Performance of Nigerian manufacturing industry. This finding implies that production Scheduling did not significantly affect the Corporate Productivity Performance of firms. Based on these, the study recommends among others, that the Nigerian manufacturing industry should totally be overhauled, especially in the areas of scheduling, in order to realign and restore the industry from total collapse. Keywords: Production Scheduling, Corporate Productivity Performance. I. Introduction Production is a process or procedure developed to transform a set of inputs like men, materials, capital, information and energy into a specified set of output like finished products and services in proper quantity and quality, thus achieving the objectives of an enterprise’ (Vollman et al, 2007; and Jain and Aggarwal, 2008). The production system likewise is the design process by which elements are transformed into useful products. A process then is an organized procedure for accomplishing the conversion of inputs into output. It is assumed that production can be effective if an appropriate and efficient Production Scheduling (PS) technique is in place. It is the understanding, design and application of this technique that form the focal concept of this research in the Nigerian manufacturing sector. If the manufacturing sector of the Nigerian economy is seriously declining in its contribution to GDP, then there is probably the problem of understanding, design and application of PS in the Nigerian economy-especially in the real sector where manufacturing is predominant. This research has looked at existing models and techniques such as linear programming and other mathematical programming techniques, to find out if they are applied anywhere in the industries under study. The study also sought to establish how suitable such models must have been in the context of the Nigerian economy. It is argued that the existing models could not have been developed with the Nigerian economy in mind, or that our economy lacks proper understanding of such models, thereby being unable to adapt it for application in the Nigerian situation. Despite the rich natural, human and capital resources in the environment, the Nigerian manufacturing sector and indeed the economy is recording a high level of de-industrialization (Eke, 1985; Eleanya, 2002, 2009; Green, 2006). This situation seems to sow the seed for more violent political and social instability. This is because the level of unemployed but employable citizens has continued to: (1) increase exponentially; (2) create a large reserve army of recruitable political thugs and gangsters capable of short changing citizens electorally; (3) generate large number of militants, armed robbers, kidnappers and criminals who will make life nasty, short and brutish for citizens; (4) help to accelerate state failure; and (5) embark on the revolutionary reorganization and reordering of society (Eleanya 2009). He went further to state that stable European and American states have industries which provide a platform for the citizens to be gainfully employed and usefully engaged hence removing a large segment of the population from, hunger, want, poverty, penury, anger and thus the possibility of being available for recruitment as political thugs, miscreants and possibly instigators of political, economic