There is a well-established positive relationship between education levels and higher earnings. Generally, the more education an individual attains, the higher their potential earnings tend to be over their lifetime. This relationship between education and higher earnings can be attributed to several factors:

1. Skills and knowledge acquisition: Higher levels of education provide individuals with more advanced skills, knowledge, and expertise that are valued in the labor market. This increased human capital makes them more productive and attractive to employers, leading to higher wages and salaries.
2. Job opportunities: Education opens up a broader range of job opportunities, including those that require specialized training or advanced degrees. These jobs often come with higher pay scales and better career prospects compared to jobs that require less education.
3. Signaling effect: Education serves as a signal to employers about an individual’s ability to learn, work ethic, and potential productivity. Employers often use educational attainment as a screening mechanism when hiring, and they may be willing to pay a premium for individuals with higher levels of education.
4. Cognitive and non-cognitive skills: Education not only imparts academic knowledge but also helps develop critical thinking, problem-solving, communication, and other valuable skills that are highly valued in the workplace, contributing to higher productivity and earnings potential.
5. Occupational mobility: Higher education levels allow individuals to access occupations and industries that typically offer higher salaries and better career advancement opportunities.

The relationship between education and earnings is supported by numerous studies and data from various sources, such as census data, labor force surveys, and longitudinal studies. However, it is important to note that the strength of this relationship can vary based on factors such as field of study, geographic location, economic conditions, and individual characteristics.
While education is not the sole determinant of earnings, it is widely recognized as a significant factor contributing to higher earning potential and improved economic well-being over an individual’s lifetime.