• Ikughur, J.A.
  Department of Statistics, Joseph Sarwuan Tarka University Makurdi – Nigeria
  




• Nwaosu S.C.
  Department of Statistics, Joseph Sarwuan Tarka University Makurdi – Nigeria
  




• Ikpebudu, P.I.
  National Accounts, Energy and Environment Statistics, National Bureau of Statistics, Abuja-Nigeria
  

In this study, the relationship between investment and Real Gross DomesticrnProduct (LRGDP) in Nigeria is investigated using Auto-regressive distributedrnLag (ARDL) and associated statistical methodologies in order to fit a modelrncapturing the dynamics in investment and economic growth over the time.rnAnnual data was collected from Nigeria Bureau of Statistics Central Bank ofrnNigeria and other statistical agency in Nigeria for the period 1981 - 2022. Thernstudy revealed a statistically strong and positive relationship between LRGDPrnand its lag 2, a negative but insignificant relationship between LRGDP andrnLGFCF at 5% level in the short run. However, there exist a significant positivernrelationship between current Real Gross Domestic Product (LRGDP) andrnLGFCF in the long run. This finding gives credence to the expectation thatrneconomic growth is influenced by gross capital investment as demonstratedrnin this study. These findings will enable policymakers, economists, andrnstakeholders involved in economic planning to tune policies that will creaternenabling environment for investment to have positive impact on the economy in both short run and long run.