Step 1: Introduction to Public Expenditure.
Public expenditure refers to the spending by the government on goods and services that benefit the public. Over the years, public expenditure has increased due to various reasons.
Step 2: Reasons for the Growth of Government's Public Expenditure.
1. **Population Growth**: As the population grows, the demand for public goods and services such as healthcare, education, and infrastructure increases, leading to higher expenditure.
2. **Economic Development**: With economic development, governments tend to invest more in infrastructure, social welfare programs, and public services to support the growing economy.
3. **Defense and Security**: Increased expenditure on national defense and security is a major factor for growing public spending, especially during times of political instability or war.
4. **Social Welfare Programs**: Governments have been increasing their spending on social welfare programs, including unemployment benefits, pensions, and healthcare, to address inequality and poverty.
5. **Technological Advancements**: With advancements in technology, governments need to invest in new technologies and modernize public services, which increases expenditure.
6. **Environmental Concerns**: Spending on environmental protection, climate change measures, and natural resource management has increased as environmental issues have become more urgent.
Final Answer: