Philipp Bach
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philippbach.bsky.social
Philipp Bach
@philippbach.bsky.social
Assistant Professor (Juniorprofessor) of Econometrics; FU Berlin; Interests: Causal machine learning, causality, data science, statistics, econometrics ; https://philippbach.github.io/
Thanks, Paul! Looking forward to CDSM
October 27, 2025 at 6:24 PM
Oh, here's the handle of Jan 😀: @janteichertkluge.bsky.social
January 6, 2025 at 8:46 AM
The paper is joint work with (I guess almost all bsky-less)

Victor Chernozhukov
@svenklaassen.bsky.social
Martin Spindler
Jan Teichert-Kluge
Suhas Vijaykumar

Looking forward to your thoughts, comments and questions!
January 6, 2025 at 8:42 AM
The causal part:

If you are a #causal #DAG enthusiast, you'll finde some causal diagrams and a discussion on causal aspects of demand analysis in the paper too 😀

#CausalSky #dataSkyence
January 6, 2025 at 8:42 AM
The fun part (that's what you usually don't read in the papers):

Embedding text and image data makes demand analysis pretty accessible from an intuitive point of view. You can play around with the product embeddings, check for similarities and formulate/check hypotheses for various demand patterns
January 6, 2025 at 8:42 AM
Our learnings:

We find that text and image data play an important role in predictive and causal demand analysis: Improved demand prediction and advanced heterogeneity analysis using product infos encoded in text and images, e.g., based on similarities and AI/data-driven product categorization.
January 6, 2025 at 8:42 AM
Our approach:

1️⃣ Enhanced Predictions: AI-driven embeddings significantly improve the accuracy of sales rank and price predictions

2️⃣ Improved Causal Inference: By fine-tuning embeddings for causal tasks, we uncover strong heterogeneity in price elasticity linked to product-specific features
January 6, 2025 at 8:42 AM