This paper endeavors to formally establish a link between public investment and economic growth. Public investment is one of the key factors of economic development. It is often seen as important ingredient for economic growth in developing countries like Bangladesh. The main purpose of the study is to investigate the impact of public investment on economic growth in Bangladesh. I also examine the public investment of Bangladesh. We consider ADP is the main proxy for public investment in Bangladesh. We also consider the gross capital formation for more reliable results. In our country, ADP traditionally holds the central place in our national economic planning. ADP regularly promotes economic growth, ensures infrastructural development, reduces poverty and improves the environment. The link among GDP, PI and GCF are analyzed by our regression model. From our study, we have seen that PI has positive effects on GDP in Bangladesh. So, in the light of that result, increases in public investment should have a positive net impact on economic growth which augments our economic development in future. This thesis concludes with a number of policy recommendations arising from the research findings.
Keywords: ADP, GCF, GDP, Public Investment, economic growth