The data below is a JSON object that consists of 4 key-value pairs:

• "unilateral_cost", which contains a JSON object of

  {"<region name>": <cost of the region's own unilateral action>}

• "unilateral_benefit", which contains a JSON object of

  {"<region name>": <benefit of the region's own unilateral action>}

• "freeloader_benefit", which contains a JSON object with the regions doing the unilateral action as the keys, and the values being the JSON objects of

  {"<'freeloader' region name>": <benefit amount>}

• "global_benefit", which contains a JSON object with the region names as the keys, and the fraction of global benefit, scaled by a fraction of the region's social cost of carbon, as the values.

The values are in billion dollars.