Abstract
Countries with a high investment GDP ratio
benefit from better, competitive products and services. Which increases capital
stock for production, more employment, and income; in turn reducing social and
income disparities. The Kenyan
government envisaged a sustained economic growth of 10% by investing in
priority sectors; to become an industrialized middle-income country by the year
2030; though un-achieved to date. To examine the nexus between internal
investments and economic growth, the study used annual time-series observations
from the years 1996 to 2017; where internal investments are from the government;
private domestic; and public-private partnership; and exogenous variables were
rates of real interest; social discount; commercial lending interest; and the
country risk premium on lending for investment decisions. The inference used
stationarity; cointegration; significance; causality; variance decomposition of
forecast error; and impulse response function. Stationarity tests suited the
ARDL model which also supports small size observations. Findings were; a
significant and positive influence on economic growth from lags of real GDP, government,
private domestic, except public-private partnership investments. Anticipation
for growth lies with; significant pairwise causality (real GDP with public
investment); significant block exogeneity (public investment); endogeneity
(real GDP), and exogeneity (public investment) influence; and short-run private
domestic investment recovery.
Keywords: ARDL, Economic Growth, Public Investment, Private Domestic
Investment, Public-Private Partnership Investment, Investment Decisions.