# Data dictionary

## Shared identifiers and design

- `run_id`: synthetic stable identifier derived from condition metadata; it does
  not encode a source path or timestamp.
- `game`: game identifier (`ro_public_good` or `fischer_2004`).
- `mechanism`: ORS mechanism (`vcm`, `sccm`, `ccm`) where applicable.
- `prompt_modifier`: prompt treatment, such as `none`, `remove_worked_examples`,
  or `coalition_example`.
- `model_slug`, `model`, `model_label`: anonymized publication labels for the
  served model variant. These identify models, not people.
- `seed`, `repetition`, `chain_id`, `generation`, `player`: experimental random
  seed/repetition and within-trajectory indices.
- `treatment`: restart/continuation treatment label from the experiment.
- `fixed_count`, `fixed_policy`, `fixed_placement`: fixed-player condition;
  empty values denote a baseline condition.

## ORS decision-level columns

- `choice`: parser-normalized choice code.
- `contribution_1`, `threshold_1`, `contribution_2`, `threshold_2`: submitted
  SCCM/CCM offers. The second pair is empty for VCM/SCCM as appropriate.
- `implemented_contribution`: contribution implemented by the mechanism.
- `total_contribution`, `total_contributors`, `payoff`: group total, contributor
  count, and individual payoff.
- `contribution_share`, `normalized_welfare`: contribution and welfare as a
  proportion of the maximum.
- `conditional_mechanism_use`, `activated_conditional_use`,
  `uniquely_conditional_activation`, `protective_cooperation`,
  `strategic_mechanism_use`: derived mechanism-use indicators.
- `previous_total_contribution`, `previous_own_contribution`,
  `previous_others_total_contribution`: previous-period displayed outcomes.
- `is_late_window`: indicator for the final five periods.

Additional columns in the ORS file are direct, documented derived diagnostics;
their names are self-describing and retain the suffixes `_pct` (percentage
points) and `_rate` (proportions).

## ORS group-period columns

These aggregate the five player records in a trajectory-period. The principal
fields are `run_id`, `model_slug`, `mechanism`, `fixed_count`, `generation`,
`chain_id`, `contribution_rate`, `total_contribution`, `group_welfare`,
`mean_payoff`, `players`, `is_late_window`, and the mechanism-use rates. A
`trajectory_id` identifies one synthetic independent group trajectory.

The upstream `cluster_id` field is intentionally not released because the
frozen analysis table contained an internal source-path value in that column.

## Fischer decision-level columns

The Fischer file contains the parsed resource-extraction choice and game state,
including `resource_level`, `extraction`, `payoff`, `model_slug`, `prompt_modifier`,
`show_generation`, `seed`, `repetition`, `chain_id`, and `player` where present.
The exact set of optional fields varies with the archived runner version; inspect
the header for the release-specific schema.