Which Econometrics Regression Course to take?

The key data method used in economics is regression where a variable y is explained by one or more other variables x1, x2, ...
Interest lies in predicting y, or more often in estimating how much y changes when a key variable changes after controlling for additional variables. For example, how do individual earnings change with one more year of education after controlling for age, gender, parental education, ....

There are three relevant basic regression courses for Economics majors to consider.

• Economics 102 (Analysis of Economics Data) This is the required course for the Economics major and the "simplest" course.
• Statistics 108  (Applied Statistical Methods: Regression Analysis) A more advanced course.
• Economics 140 (Econometrics) An advanced course and one required for the Data Analytics and Economic Analysis Specialization Track of the Economics degree

Economics 102 is enough for the Economics major and admits you to all other Economics courses that have a data methods requirement - see below.
Economics 102 covers mostly regression analysis, though begins with a review of basic probability and statistics. The course uses the statistical package STATA.
An example syllabus is at http://cameron.econ.ucdavis.edu/e102/e102Asyl.html

Statistics 108 is a more advanced course than ECN 102 that focuses on regression analysis.

Economics 140 is a more advanced course than ECN 102 that requires a previous regression course (ECN 102 or STA 108).
This provides more theory behind the regression methods used and presents some more advanced methods, notably those for causal analysis (rather than correlational analysis).
Like Economics 102, Economics 140 admits you to all other Economics courses that have a data methods requirement and fulfills the major requirement in place of Economics 102.

• Economics 140 (Econometrics) This presents regression theory and methods in more detail than 102.
• Economics 141 (Economics and Financial Forecasting) requires ECN 102 or equivalent.
• Economics 142 (Economics and Business Data Analytics) requires ECN 102 or equivalent.
  The course is Economics and Business Data Analytics and is offered Spring 2022.
  See http://www.econ.ucdavis.edu/courses/ecn-190-topics.
  The 190 courses will become regularly listed courses once approved by the university course approval committee.
  
• Several economics courses include some regression analysis of data.
  These courses are in the Data Analytics and Economics Analysis Specialization Track of the Economics major. Currently
  ECN 132 (Health Economics)
  ECN 138 (Public Economics in International Perspective)
  ECN 145 (Transportation Economics)
  ECN 152 (Economics of Education)
  and possibly some of the ECN 190 courses. More courses may be added over time.
  

A. Colin Cameron / UC-Davis Economics / http://www.econ.ucdavis.edu/faculty/cameron