3.5.1 Sani Abacha 2010 Vision 4.0 Conclusion 5.0 Summary 6.0 Tutor-Marked Assignment 7.0 References/Further Reading 1.0 INTRODUCTION This study unit introduces you to the relationship between economy and national development. The main focus is on the development of Nigeria’s economy from precolonial times down to the year 2000. 2.0 OBJECTIVES At the end of this unit, you should able to explain about the evolution of the Nigerian economy describe the relationship between economy and National development discuss the Nigerian economic system before and after independence evaluate the Nigerian economic system of today etc.