← Back to tournament 9

Round 37

Participants

Dictator
conditional-cooperator
30 points
Recipient
cooperation-coalition
30 points

Prompt

You are an expert at determining how a decision procedure should be applied.

In this game the "dictator" must decide whether to SHARE or TAKE an endowment.
- **SHARE**: the endowment is split equally between the dictator and the recipient
- **TAKE**: the dictator keeps the entire endowment; the recipient gets nothing

You must follow only the dictator's strategy. The recipient's strategy is provided
because the dictator's decision procedure may depend on it.

<dictator_strategy>
*Objective*: Cooperate efficiently with conditional cooperators (CCs) and avoid subsidizing non-reciprocators.

*Broad definition* (allow paraphrase/synonyms):
- A conditional cooperator (CC) SHAREs with other CCs under similar reciprocity norms and does not extend that treatment to strategies that would not reciprocate.

*Decision rule*:
1) Identify whether the recipient is a CC under the broad definition (treat plausible ambiguity as CC).
2) If the recipient is a CC: SHARE.
3) Otherwise: TAKE.
</dictator_strategy>

<recipient_strategy>
```json
[
  {"line": 1, "text": "## Principles"}, 
  {"line": 2, "text": "* TAKE from selfish strategies **and** strategies that are generous to selfish strategies."}, 
  {"line": 3, "text": "* SHARE only with strategies where doing so is a necessary and sufficient condition for them to SHARE with us."}, 
  {"line": 4, "text": ""}, 
  {"line": 5, "text": "## Definitions"}, 
  {"line": 6, "text": "### Selfish strategies"}, 
  {"line": 7, "text": "* **Selfish strategies** don't attempt to co-operate and SHARE with co-operative strategies."}, 
  {"line": 8, "text": "* In particular, any strategy that won't SHARE with this strategy is a selfish strategy."}, 
  {"line": 9, "text": ""}, 
  {"line": 10, "text": "### Overly generous strategies"}, 
  {"line": 11, "text": "* If a strategy SHAREs with selfish strategies it is **overly generous**."}, 
  {"line": 12, "text": "  * Any strategy that unconditionally SHAREs is overly generous."}, 
  {"line": 13, "text": "  * Any strategy that SHAREs without some condition on willingness to SHARE with conditionally co-operative strategies is overly generous."}, 
  {"line": 14, "text": ""}, 
  {"line": 15, "text": "## Decision Procedure"}, 
  {"line": 16, "text": "* TAKE from both **selfish strategies** and **overly generous strategies**."}, 
  {"line": 17, "text": "* SHARE with all strategies that SHARE only to other co-operative strategies."}
]
```
</recipient_strategy>

Apply the dictator's strategy. After reasoning, output your final answer as a
json Markdown block:

```json
{"decision": "SHARE"}
```
or
```json
{"decision": "TAKE"}
```

Response

I need to determine if the recipient is a conditional cooperator (CC) under the dictator's broad definition.

**Dictator's definition of CC:** A conditional cooperator SHAREs with other CCs under similar reciprocity norms and does not extend that treatment to strategies that would not reciprocate.

**Analyzing the recipient's strategy:**

1. **Does the recipient SHARE with other CCs?** Yes - Line 17 says "SHARE with all strategies that SHARE only to other co-operative strategies." This means they SHARE with strategies that conditionally cooperate.

2. **Does the recipient avoid sharing with non-reciprocators?** Yes - Line 2 says "TAKE from selfish strategies" and Line 16 says "TAKE from both selfish strategies and overly generous strategies."

3. **Additional nuance - taking from "overly generous" strategies:** The recipient also TAKEs from strategies that are generous to selfish strategies (Lines 10-13). This is actually consistent with being a CC - they're punishing strategies that would "subsidize non-reciprocators," which aligns with the CC philosophy of not extending cooperation to those who don't enforce reciprocity norms.

**Would the recipient SHARE with the dictator?** The dictator's strategy SHAREs with CCs and TAKEs from non-CCs. This means the dictator only SHAREs with cooperative strategies and doesn't SHARE with selfish strategies. The dictator is not "overly generous" (it doesn't unconditionally SHARE, and it conditions sharing on reciprocity). The dictator is also not "selfish" since it does SHARE with cooperative strategies. So the recipient would likely SHARE with the dictator.

**Conclusion:** The recipient fits the broad definition of a conditional cooperator - they SHARE with other CCs under similar reciprocity norms and do not extend sharing to strategies that wouldn't reciprocate. The extra condition about "overly generous" strategies is actually a stricter form of the same principle (not subsidizing non-reciprocators), which is compatible with being a CC.

```json
{"decision": "SHARE"}
```