Katrina Santos

Struggling to untangle R output, complex regressions, or the difference between a shift and a movement in supply and demand?
I specialize in making undergraduate Microeconomics and Econometrics accessible, practical, and easy to grasp.
My teaching philosophy is simple: the focus is understanding first, formulas second. Economics can look intimidating because of the heavy notation and graphs, but underneath it all, we are just asking simple questions about human choices and data relationships. Many students feel overwhelmed when taking heavy quantitative courses in a single semester, but we will take it one step at a time so you feel genuinely confident.

What I Teach
Microeconomics: We will master core foundational concepts including scarcity, opportunity cost, comparative advantage, supply and demand, elasticity, consumer and producer surplus, externalities, and the costs of production.

Econometrics: We will conquer simple and multiple regression analysis, hypothesis testing (including p-values and standard errors), dummy variables, Instrumental Variables (IV/2SLS), Propensity Score Matching (PSM), Regression Discontinuity Design (RDD), and Difference-in-Differences (DiD).

Stata/R Programming for Economics: We will focus heavily on translating econometric notation into R output, learning exactly which numbers matter so you can interpret them confidently for your exams.

My Teaching Methods
Intuition-First Approach: I break down intimidating graphs and heavy formulas into plain English and simple real-world examples before we ever touch the math.
Direct Course Alignment: We will work directly through your specific professor's original materials, lecture slides, and problem sets to ensure our sessions translate to your actual exam success.
Customized Study Hubs: I organize a dedicated online workspace for our lesson recaps, practice homework, and custom cheat sheets (like regression-output checklists or elasticity formula sheets) so you never feel lost.
Diagnostic Practice: I use targeted mini-exercises and have you practice explaining the answers back in your own words, just like you will need to do on the actual exam.