South bank

ProHub Comment

This case requires candidates to build a market-sizing model across three income segments, then evaluate two distribution channels (branches vs. online) using a payback period framework. The quantitative analysis reveals that while low-income entry appears viable (1-year payback), the real challenge is operational and structural—South Bank lacks branch presence in most low-income regions. Strong candidates will recognize this and explore hybrid approaches, such as leveraging technology or focusing on hidden low-income populations in well-penetrated areas like Lima.

Estimated Time 27 minutes
Difficulty Medium
Source IESE
10 / 100
South Bank (SB) is the leading retail bank in Peru, an emerging South American country. SB has a dominant performance on high-income and a very good performance in medium-income customers but has not been capable of entering to low-income market. CMO has told us that his team has been evaluating the option to launch a new credit card with cashback benefits, which are perceived as much more valuable in this segment, and the product has already shown some results in competitors. Currently, SB has a credit card with a loyalty program based on airline miles. This program is considered part of a strategic alliance with an important regional airline. The CMO would like you to evaluate if it is convenient to invest in this project.

Clarifying Information

  1. Peru has 35 M inhabitants. The local currency is PEN. Adults represent 70% of population.
  2. Country has 3 main economic segments, with clear different behaviours in credit card use.
  3. Consider Credit Card business as an independent unit of analysis.
  4. Revenues are only generated by merchant fee, a percentage of the amount paid with the card. During the last years has been stable at 2%.
  5. Each client can only have 1 credit card at the same time.
  6. To be approved, a project is required to have a payback period of 3 years. As a secondary metric, CMO prefers to generate the highest possible net cash flow in the first 3 years.
Mock Interview
Interviewer

South Bank (SB) is the leading retail bank in Peru, an emerging South American country. SB has a dominant performance on high-income and a very good performance in medium-income customers but has not been capable of entering to low-income market. CMO has told us that his team has been evaluating the option to launch a new credit card with cashback benefits, which are perceived as much more valuable in this segment, and the product has already shown some results in competitors. Currently, SB has a credit card with a loyalty program based on airline miles. This program is considered part of a strategic alliance with an important regional airline. The CMO would like you to evaluate if it is convenient to invest in this project.

You

Thanks. Before analyzing, I'd like to clarify a few key questions...

Interviewer

Good question. Let me provide some background information...

You

Based on this, I suggest analyzing from these dimensions...

AI Score
Structure Analysis Communication Business Sense Quantitative
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South Bank evaluates launching a cashback credit card to penetrate the low-income market segment in Peru. Market sizing shows 8.82M annual revenue potential from low-income but only 0.3% of current bank revenues. Both branch and online channels achieve 1-year payback, but branches generate 2.5x higher cash flow despite requiring significant additional capital investment in under-served regions. The recommendation hinges on recognizing infrastructure constraints and exploring targeted strategies like mini-branches or digital cards.

Key Insights:

  1. Market sizing must segment by income level to reveal true opportunity size—low-income market is only 3% of total market and 0.3% of current SB revenues
  2. Channel selection involves tradeoffs between cash generation (branches: 18.4M vs online: 7.2M over 3 years) and capital efficiency (online requires less CAPEX)
  3. Structural barriers (lack of POS, branches, financial literacy in low-income regions) may be more limiting than product design, requiring long-term market development
  4. Geographic distribution matters—Lima City contains one-third of Peru’s population and likely has untapped low-income segments alongside existing high branch penetration
  5. Medium-income segment may offer better risk-adjusted returns than low-income given higher penetration rates and market share