4.1 Reforge - End to End Quant Model Introduction

Building an End-to-End Quantitative Model

  • Goal: Answer the question, "How does your product grow?"
  • Importance: Enables prioritization and strategic investments.

Types of Growth Models

  • Qualitative Model: For communication, brainstorming, strategic thinking, and alignment.
  • Loop Specific Model: Validates and prioritizes ideas around a single loop.
  • End to End Quant Model: Representative of the entire product.

Qualitative Growth Model

  • Foundation for broader communication and strategic thinking.

Loop Quantitative Model

  • Focuses on a single loop within the qualitative model.
  • Used to validate and prioritize ideas within that specific loop.
  • Involves loop maps, steps, output metrics, conversion formulas, and variables.

End-to-End Quantitative Model

  • Pros:
    • Discovery: Identifies inputs, outputs, and relationships.
    • Holistic View: Combines individual loops into one model.
    • Detailed Map: Provides more detail on inputs and outputs.

Caution

  • All models are wrong, but some are useful.
  • Avoid making the model too complicated.
  • Aim for directional accuracy, not perfect accuracy.

Steps to Build

  1. Identify the key output.
  2. Break it down into its inputs.
  3. Insert baselines.
  4. Project the output over time.

Reforge Professional Network (Hypothetical Example)

  • Portfolio site for growth professionals.
  • Users can sign up, create a portfolio page, upload their work, and tag team members.