It
is concluded that; direct investment of the foreign has important positive
relationship by economic growth of the United States. It means by increasing
the direct investment of foreign economic of a United States will also enhance.
It is also concluded this research study is conducted for investigating the blow
of the US economic growth for the direct investments for foreign along a period
of the 1980 to 2016 and it can be short run and long run by using the
techniques of ARDL. Moreover the approach of linear regression has been applied
on this model by using the software of SPSS. SPSS used to evaluating the best
fit of the model as well it shows the percentage of the influence of the one
variable on another variable. It is also concluded that inflation rate has
negative relationship with United States economic growth which shows the
economist of the United States must be tried reduce the inflation rate, Do that
the economy of the United States can be high. This research also concluded as gross
capital formation has significant positive relationship with the economic
growth the United States. It means the capital is using in the United
efficiently due to that it have positive significant relationship with the GDP
Growth of the United States. It is concluded by this whole study two variables
as foreign direct investment and gross capital formation have positive
relationship with the growth economy of the United States and inflation rate
has negative influence to the GDP Growth of the United States.