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Math and Formulas: Economic and Financial concepts for MBB interviews

Master the must-know economic, financial, markets and pricing concepts for consulting interviews
Don’t learn the theory: learn how to apply it to cases
Complement your prep with 6 detailed case interviews
USD 50

With this Product You Will Learn Economic and Financial Concepts

Many candidates preparing for consulting interviews don’t have an economic background, which makes the highly competitive case prep even more uphill. In fact, >40% of MBA candidates come from non-economic backgrounds, and they represent >50% of the candidate pool interviewing for consulting. 

I myself was one of them: I went through my McKinsey interviews when I was in my last undergrad year in Architecture. I had no idea of what a break even point was, and the word EBIDTA was just a bunch of letters for me. 

After +4 years of candidate coaching and university teaching, and after having seen hundreds of cases, I realized that the economic-related knowledge needed to master case interviews is not much, and not complex. However, you need to know where to focus! Hence, I created the guide that I wish I could have had, summarizing the most important economic and financial concepts needed to solve consulting cases, hoping to help candidates focus on what matters.

Frequently bought together

Math and Formulas: Economic and Financial concepts for MBB interviews by Clara
USD 50
Premium Membership (6 weeks)
USD 89
Integrated FIT Guide for MBB by Clara
USD 49 USD 69
USD 188 USD 208

The ‘Economic and Financial Concepts for MBB Interviews’ Guide

The guide will walk the candidates through the key economic and financial concepts needed to solve consulting case, combining key concepts theorical reviews and a hands-on methodology with examples and ad-hoc practice cases. 

Following the guide’s four core topics (Economic concepts, Financial concepts, Market structure & pricing and Marketing and Customer Acquisition), the candidate will interiorize and apply the handful of key concepts that appear in almost all consulting interview case, gaining focus, consistency and speed in his or her interview prep. 

Finally, the guide contains +25 full pages dedicated to case interviews following each key concept, color coding (1) prompt, (2) additional information and (3) detailed resolution to allow for solo practice and case review. 

This Is the Right Guide for You If You…

  • Don’t have an economic background and want to learn the must-knows without having to consult countless online sources, or without having to go through the first 20+ cases googling terms such as “CAPEX” or “NPV”
  • Have some economic knowledge, but want to deep-dive and focus on the concepts that are really needed in consulting interviews
  • Want to learn not only the theorical concepts, but they are applied in cases and why do they matter
  • Want to follow a straight forward methodology, leveraging exercises and cases to practice and interiorize every concept individually and as part of a consulting interview case
  • Want to have all materials in one single resource, saving time and ensuring consistency and accuracy


Page 1-13


  • Overview of consulting interviews and where economic and financial concepts are needed
  • Guide’s methodology, with topics prioritization in terms of time for preparation
Page 14-37

Economic concepts

  • Profitability equation
  • Break even
  • Valuation methods: economic, market and asset
  • Payback period
  • NPV
  • IRR
  • Practice case 1 – “highway privatization”: profitability, break even
  • Practice case 2 – “trains market entry I”
  • Practice case 3 – “retailer’s new shop”
Page 37-57

Finance concepts

  • Balance sheet
  • Income statement/P&L
  • Performance ratios: based on sales and based on investment
  • Practice case 4 – “coffins manufacturer”
Page 58-74

Market structures and pricing

  • Market types and characteristics
  • Perfect competition markets: demand and supply
  • Willingness to pay
  • Pricing approaches
  • Market segmentation
  • Price elasticity of demand: elastic vs. inelastic markets, positive and negative cross-elasticity of demand
  • Practice case 5 – “pricing a museum”
Page 75-85

Marketing and customer acquisition

  • Sales funnel
  • Key marketing metrics: CAC and CLV
  • Churn
  • Practice case 6 – “telco’s customer lifetime value”

About the Author

Content Creator
McKinsey | Awarded professor at Master in Management @ IE | MBA at MIT |+180 students coached | Integrated FIT Guide aut

Clara started her career in McKinsey & Company, where she focused on Telco, Oil & Gas and Real Estate. She later joined the team that launched Amazon Business in Spain, where she is nowadays in charge of several capability building and coaching programs for the Spanish Marketplace department.

Clara teaches “Data Insights and Visualization” in the Master in Management at Instituto de Empresa in Madrid, where she has received the Teaching Excellence Award, as the best valued course by the students. She has also coached 150+ candidates on diverse platforms, such as PrepLounge. Furthermore, she is founder and president of the NGO Building their Future since 2015, focused on educational projects in Nairobi, Kenya.

Still having doubts? Then read what other users say:
9 ratings
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July 13, 2023 by Mohammad

I found the Economic and Financial Guide to be very helpful. As someone without a background in economics, it can be challenging to find relevant information from different sources. This guide simplified the learning process by providing all the necessary information in one concise booklet. It covers everything needed to feel confident in preparing economic, financial, pricing, and market acquisition questions for case interviews. The guide is well-structured and easy to understand, with helpful examples that aid in fully grasping the concepts and learning how to apply them effectively. Overall, this guide is an excellent resource for mastering key economic and financial concepts for case interviews in a short amount of time.

3 users found this review helpful.
July 11, 2023 by Clemens

Very solid guide, it's going to save me a lot of time looking for the different formulas and concepts. I also like that it has cases in which you use those formulas, so it's "applied". Def recommend

3 users found this review helpful.
July 23, 2023 by Asma

This guide is what I had been looking for, and I do have background in economics. It is really well structured in chapters, that are sub-divided by concepts, with cases to practice. The theory is broken down step by step and with examples. My favorite part is the break even explanation, I finally understood the different ways to arrive at the result, and which to apply depending on which data you have. I had been struggling with that! I recommend this guide even for people who have some economic background, but want to focus on what matters for the cases.

1 user found this review helpful.
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