the period (1961- 2021). For this purpose, the study
used the gross domestic product as a dependent
variable to represent economic growth (Y). Tax
reform (X1), population growth (X2), and foreign
direct investment (X3) represent explanatory
variables. The study applied the ordinary least
square technique to data collected from the World
Bank database.
The rest of the paper is organized as follows:
section two reviews the literature. Section three
presents the methodology and model specification.
Results discussion and conclusion provide in
sections four and five, respectively.
2 Literature Review
Tax reform is a broad term that encompasses a
variety of changes to taxation systems, including
changes in rates, exemptions, deductions, credits,
and other features. Tax reforms can be designed to
increase revenue or reduce government spending,
but they can also affect economic growth. For
example, reducing marginal tax rates can encourage
investment and entrepreneurship by providing
incentives for individuals to invest in productive
activities. Similarly, eliminating certain deductions
or credits can reduce distortions in the economy and
lead to more efficient resource allocation. The
empirical evidence on the impact of tax reform on
economic growth is mixed. Studies from developed
countries generally find that reductions in marginal
tax rates are associated with higher levels of
economic growth, [4], [5]. However, these results
are not universal; some studies found no significant
effect, [6].
In developing countries, some studies suggested
that reductions in marginal tax rates may have a
positive effect on economic growth, [7]. In [8],
author described an economy with overlapping
generations, endogenous growth, and an unfunded
pension system financed by capital and labor
income taxes. The study found that a rise in worker
income and capital taxation leads to a decline in the
elderly labor supply. The result suggested that,
under some circumstances, a capital income tax and
growth have an inverted U-shaped connection.
Although, it is widely believed that capital should
not be taxed in the long run. In addition to
examining the direct effects of tax reforms on
economic growth, it is also important to consider
their indirect effects. For example, reducing taxes
may lead to increased government spending which
could have a positive effect on economic growth,
[9]. Similarly, reducing taxes may lead to increased
investment which could also have a positive effect,
[4]. Considering India's experience of economic
growth, [10], analyzed annual government revenue,
development, and gross domestic product data from
1990 to 2017. The study revealed a positive
association between tax revenues and GDP; a
relationship was also found between tax revenues
and development costs. They concluded that to
increase GDP and growth, it is necessary to
accelerate spending on the development of
investment projects. Government revenue is the
main source of funding for the public.
The authors in [11], determined the influence of
tax revenues on economic growth in Nigeria. They
said tax revenue didn't matter for Nigeria's inflation
rate and interest rate at a significant level of 5%.
Given the favorable relationship between taxes on
oil profits and economic development, they
recommended that the federal government support
the management of public finances, promote audit
and transparency measures, streamline tax
administration, and fight tax evasion. It is tough to
predict how tax reform will affect economic
development because of several issues. First, it is
difficult to isolate the effects of any particular policy
change from other factors that may be influencing
economic performance at any given time. Second,
many policies are implemented as part of the
broader package which makes it difficult to isolate
their individual effects, [6]. Thirdly, there may be
lags between policy implementation and its effects
which further complicates the analysis, [9].
Empirically, [12], analyzed the effect of tax reforms
on income distribution in developing countries.
They applied the local basic method to a new
database, tax reform, and narrative database
covering 45 emerging and low-income countries.
The results revealed that Personal income reform
reduced the disposable Gini and increase the bottom
income share. In the same regard, [13], noted that
taxation has four main functions: revenue,
redistribution, revaluation, and representation.
According to different theories and empirical
evidence, the issue of population and economic
growth is controversial. Therefore, [14], analyzed
the impact of population growth on economic
growth in the Ethiopian economy. They used ARDL
methods, whose empirical results showed that
population growth, export growth, and import
growth had significant positive effects on Ethiopia's
economic growth in both the short and long term.
Furthermore, [15], analyzed the impact of
population growth rate, economic growth and index
of human development, distribution of income, and
rate of unemployment on poverty in all provinces of
Indonesia. They found that population growth rate,
WSEAS TRANSACTIONS on BUSINESS and ECONOMICS
DOI: 10.37394/23207.2023.20.109
Badreldin Mohamed Ahmed Abdulrahman,
Houcine Benlaria et al.