The different bases of comparison of economic development of different nations/states can be:
Income, literacy,  population GDP per capita, Life Expectancy, Literacy Rates, Measures of Poverty, Demographic Indicators and Disease Indicators.

Income of people in a particular country , shows the market potential of the county

GDP shows how much good is being developed and sold ie consumed in each country

life expectancy provides the information about heath services and environment

measures of poverty gives idea about very poor people 

literacy gives the status about people being able to comunicate with each other with ease

Four Different Factors for Comparison of Economic Development of Different Nations or States:

There are several factors that can be used to compare the economic development of different nations or states. These factors provide insights into the level of economic growth, industrialization, and overall prosperity. Below are four key factors that can be considered for such a comparison:

1. GDP per capita:
- Gross Domestic Product (GDP) per capita is a commonly used measure to assess the economic development of a nation or state.
- It calculates the average income per person in a country or state, indicating the level of economic prosperity.
- Higher GDP per capita suggests higher living standards, better access to goods and services, and greater economic development.

2. Human Development Index (HDI):
- HDI is a composite index that takes into account various factors such as life expectancy, education, and income to measure the overall development of a country or state.
- It provides a more comprehensive view of economic development, considering not only income but also other aspects that contribute to human well-being.
- HDI ranges from 0 to 1, with higher values indicating higher levels of development.

3. Industrialization and infrastructure:
- The level of industrialization and infrastructure in a nation or state plays a crucial role in economic development.
- Developed nations or states usually have well-established industries, advanced technology, and efficient infrastructure (e.g., transportation, communication, and energy networks).
- Industrialization and infrastructure enable productivity, innovation, and the smooth functioning of economic activities, leading to higher economic development.

4. Income inequality and poverty rates:
- While GDP per capita provides an average income level, it is essential to consider income inequality and poverty rates for a more comprehensive understanding of economic development.
- Lower income inequality and lower poverty rates indicate a more equitable distribution of wealth and resources, which contributes to social development and stability.
- Nations or states with lower income inequality and poverty rates are generally considered more developed in terms of economic well-being and social welfare.

Conclusion:
When comparing the economic development of different nations or states, it is essential to consider multiple factors such as GDP per capita, HDI, industrialization and infrastructure, and income inequality and poverty rates. These factors provide a holistic view of economic development, taking into account income levels, human well-being, industrial growth, and social equality. By analyzing these factors, policymakers and researchers can gain valuable insights into the overall economic progress and prosperity of nations or states.