Research artifact · proof of concept
How to read the figure. Panel a is the instrument in three stages: the archive and the measurement build the data, the what-if organization and its simulation produce decisions, and the calibration and the what-if experiments compare them with the record. Panels b to g show the data at each stage with illustrative values; the real data are on the three pages. b, each website is captured several times a year from 2017 to 2026, except for the pandemic years, and every page carries a Common Crawl pointer. c, a language model codes each firm-year under written protocols with a quote behind every statement: the anchors of the firm and the record of its new products, their prominence, their stated results, and the year they leave the market. d, the agent reads the firm, a theory text, and the record up to the year before the decision, and answers with a probability of withdrawal and a reason. e, the same firm is decided under no theory and under each theory. f, a mix of the conditions is fitted on the decisions of 2019 and tested on the held-out decisions of 2024 and 2025 against the record. g, the same firm is simulated otherwise, with another theory, without its anchors, or with its own earlier decisions as its past.
Firm database
The table sorts by any column; a row opens the firm above.
Simulator
Computed in the browser from the published decisions; the address of the page carries the selection.
Validation
External validation · against the record
Held-out window, the decisions of 2024 and 2025 about the products of 2023 and 2024, never used for fitting. Navy, the recorded share with its 95 percent interval from resampling firms; dots, the mean probability of each agent with the same interval.
Internal validation · is the agent built as designed
Mean probability of withdrawal over all decision years on the two product attributes the theory texts name. Filled circle, the agent with the firm's web anchors; hollow circle, without them; square, with the anchors of the theory's own constructs removed; navy line, the record. A theory that moves the filled circle away from no theory and loses the move when its own anchors are removed acts through the anchors its text names.
Each row adds or removes one layer of the what-if organization, from the language model reading the product record alone to the full agent and back; the columns show what the layer changes. Navy lines, the record and the regression on the product record.