CAPT dataset

This repository accompanies the submitted paper Algorithmic Visibility as a Platform-Mediated Outcome: Public Signals and Future Product Persistence in Digital Marketplaces.

The release contains public Amazon Australia bestseller-surface observations, public New York Times bestseller-list records, the completed longitudinal panels used for the paper's sensitivity analysis, reproducible landmark-model code, and the corresponding derived results.

Repository contents

Path	Description
data/amazon_daily_completed.csv	Amazon daily panel, 14 April–18 May 2026
data/nyt_weekly_completed.csv	NYT weekly panel, list dates 19 April–24 May 2026
analysis/capt_analyze_jmis_landmark.py	Landmark cohort construction and logistic models
analysis/capt_plot_nyt_amazon_comparison.py	Title/author normalization and matching functions
analysis/capt_validation_schema.py	Shared filesystem helper
results/jmis_landmark_book_level.csv	Derived ASIN-level analytic table
results/jmis_landmark_nested_models.csv	Nested-model performance
results/jmis_landmark_summary.json	Model estimates and validation metrics

Dataset

Predictors use information dated no later than 30 April 2026. The prediction landmark is 4 May 2026. Outcomes are product presence on the directly captured Amazon snapshots of 11 May (7-day retention) and 18 May (14-day retention). Continuous predictors are standardized within the analysis sample. Model validation uses an 80/20 stratified holdout and five-fold stratified cross-validation with seed 20260629.

Reproduce the sensitivity analysis

From the repository root:

python -m venv .venv
source .venv/bin/activate
python -m pip install -r requirements.txt

python analysis/capt_analyze_jmis_landmark.py \
  --amazon data/amazon_daily_completed.csv \
  --nyt data/nyt_weekly_completed.csv \
  --output-dir reproduced_results

The command writes the book-level table, nested-model table, and JSON model summary to reproduced_results/.

Load with datasets

from datasets import load_dataset

amazon = load_dataset(
    "bonsai44/CAPT",
    "amazon_daily_completed",
)
nyt = load_dataset(
    "bonsai44/CAPT",
    "nyt_weekly_completed",
)

Fields

The Amazon panel includes snapshot date, category node and label, page and rank, title, author, ASIN, public product URL, visible rating average and count, format, price, and provenance fields.

The NYT panel includes scrape date, list slug and title, list page date, rank, weeks-on-list text, title, author, publisher, description, ISBN-13, public book URL, and provenance fields.

Limitations and responsible use

These are bounded public ranking-surface observations, not unit sales, conversions, advertising exposure, recommendation logs, or a complete sample of either platform. Amazon ASINs identify product-format records rather than unique works. Title/author matching may contain false positives or false negatives. The analysis is observational and does not identify causal effects.

The CSVs include product titles, author names, identifiers, descriptions, and URLs originating from third-party public pages. Before making the repository public, the depositor is responsible for confirming that redistribution complies with the relevant platform terms and publisher or institutional requirements. The MIT license in LICENSE applies to the accompanying software, not to third-party database rights or third-party content.

Citation

Replace the placeholders below with the final author and publication details before publishing the dataset:

@misc{capt_public_trace_2026,
  author       = {Hang Thanh Bui, Priyadharshini Muthukannan},
  title        = {Algorithmic Visibility as a Platform-Mediated Outcome: Public Signals and Future Product Persistence in Digital Marketplaces},
  year         = {2026},
  publisher    = {Hugging Face},
  howpublished = {\url{https://huggingface.co/datasets/bonsai44/CAPT}},
  note         = {Data and code accompanying the submitted manuscript}
}