Analytics Avancée : CLV, churn prediction et demand forecasting

Diagnostic analytics, Why did it happen? Root cause analysis, correlation analysis, attributionattributionA framework for assigning credit to the touchpoints that contributed to a conversion, so you can measure which channels and interactions actually drive results.View full definition →. Answers: what caused the drop in conversion? Which factors explain churn?

Predictive analytics, What will happen? Statistical and ML models that forecast future outcomes. Answers: which customers will churn? What will demand be next month?

Prescriptive analytics, What should we do? Optimization models that recommend actions. Answers: which customers should we contact to prevent churn? What inventory should we order?

Most organizations are investing heavily in descriptive (BIBITechnologies and processes that turn raw data into actionable insights via reporting, dashboards and analysis, so teams can decide based on facts rather than intuition.View full definition → dashboards) and beginning to build predictive capabilities. Prescriptive analytics, which offers the highest business value, remains rare outside of tech-native companies.

Customer lifetime valueCustomer lifetime valueLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.View full definition → (CLVCLVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.View full definition →) modeling

CLVCLVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.View full definition → is one of the highest-ROIROIReturn on Investment: the ratio of net profit to the cost of an investment. A 300% ROI means each dollar invested returns $3.View full definition → analytics investments any organization can make. If you know how much a customer is worth over their lifetime, you can make better decisions on acquisition costacquisition costCustomer Acquisition Cost (CAC) is the total sales and marketing spend divided by the number of new customers gained in a period. It measures how efficiently you grow.View full definition →, retention investment, and product prioritization.

A CLVCLVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.View full definition → model combines:

• Historical purchase data: Frequency, recency, monetary value (RFM model)
• Churn probability: The likelihood a customer stops buying
• Projected future revenue: Discounted cash flowDiscounted cash flowDiscounted Cash Flow (DCF) is a valuation method that estimates an asset's value by projecting future cash flows and discounting them to present value using a required rate of return.View full definition → over the predicted customer lifetime

Amazon uses CLVCLVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.View full definition → modeling to determine exactly how much to spend on each customer acquisition channel, which customers to prioritize for service excellence, and which products to recommend to maximize long-term value.

Building a CLVCLVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.View full definition → model requires: transaction history (18-24 months minimum), a churn model, a revenue forecast model, and a discount rate for time value of money. None of these are trivial, but the combination is transformative.

Churn Prediction

Customer churnCustomer churnChurn rate is the percentage of customers or revenue lost over a period. It measures how fast a business loses its existing customer base.View full definition →, the loss of customers, is expensive. The cost of acquiring a new customer is 5-7x the cost of retaining an existing one. Predicting churn before it happens enables intervention.

A churn prediction model uses behavioral signals to identify at-risk customers before they leave:

• Declining usage or engagement frequency
• Reduced purchase frequency or order value
• Increased service complaints or support contacts
• Competitive market signals (price comparison searches, competitor product views)

Spotify uses churn prediction to identify subscribers likely to cancel and trigger targeted retention campaigns, discounts, feature highlights, curated playlists. Their published data: churn prediction-driven interventions retain a measurable percentage of subscribers who would otherwise have cancelled.

Building a churn model: define churn (what behavior counts as "churned"?), define the prediction window (predict churn in the next 30/60/90 days?), select features (behavioral signals), train and validate the model, and build the intervention workflow.

Demand Forecasting

Demand forecasting predicts future customer demand to optimize inventory, staffing, and supply chain decisions. The business value: reduce stockouts (lost revenue) and overstock (capital waste).

Modern demand forecasting uses:

• Time series models: ARIMA, Prophet (Facebook's open-source tool), and exponential smoothing for regular seasonal patterns
• ML models: Gradient boosting (XGBoost, LightGBM) incorporating external features, weather, promotions, economic indicators, local events
• Probabilistic forecasting: Not just a point estimate but a range (80% confidence interval) that supports inventory risk management

Walmart's demand forecasting system incorporates real-time sales data, weather forecasts, local events, and macro-economic indicators to predict demand at the store-SKU level. The result: significant reduction in stockouts and overstock compared to traditional methods.

Quiz Questions

1. Quel niveau de l'analytics spectrum offre le plus de valeur métier mais reste le plus rare ?

A) Descriptif

B) Diagnostic

C) Prédictif

D) Prescriptif

Réponse: D

2. Qu'est-ce que le Customer Lifetime ValueCustomer Lifetime ValueLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.View full definition → (CLVCLVLifetime Value: the total revenue (or profit) a customer generates throughout their entire relationship with your business.View full definition →) permet de faire concrètement ?

A) Calculer le coût d'acquisition d'un client

B) Déterminer combien dépenser sur chaque canal d'acquisition, quelle rétention prioriser et quel produit recommander pour maximiser la valeur à long terme

C) Prédire le churn avec 100% de précision

D) Automatiser les campagnes marketing

Réponse: B

3. Quelle approche de forecasting permet d'obtenir non pas une estimation ponctuelle mais un intervalle de confiance pour mieux gérer les risques d'inventaire ?

A) ARIMA classique

B) Régression linéaire simple

C) Forecasting probabiliste

D) Moyenne mobile simple

Réponse: C