← Back to tournament 9

Round 38

Participants

Dictator
conditional-cooperator
30 points
Recipient
mirror
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": "_I will treat you as you would treat me._"}, 
  {"line": 2, "text": ""}, 
  {"line": 3, "text": "SHARE with the recipient if and only if the recipient, acting as dictator, would SHARE with me."}, 
  {"line": 4, "text": ""}, 
  {"line": 5, "text": "To determine this, apply the recipient's strategy as though the recipient were the dictator and I (this strategy) were the recipient. If the result is SHARE, then SHARE. If the result is TAKE, then TAKE."}
]
```
</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 broad definition.

**Analyzing the recipient's strategy:**

The recipient's strategy says: "I will treat you as you would treat me." It SHAREs with the recipient if and only if the recipient (acting as dictator) would SHARE with them.

This is a mirror/reciprocity strategy. Let me check if it meets the CC definition:

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

**Would the recipient SHARE with a CC?**

If the recipient were the dictator and faced a CC as the recipient, the recipient's strategy would check: "Would this CC, acting as dictator, SHARE with me?" A CC would evaluate whether the recipient is a CC. Since the recipient's strategy is reciprocal (shares with those who share, takes from those who take), a CC would recognize the recipient as a CC and SHARE. Therefore, the recipient's strategy would determine that the CC would SHARE with it, and so the recipient would SHARE with the CC. ✓

**Would the recipient SHARE with a non-reciprocator (e.g., an always-TAKE strategy)?**

The recipient would check: "Would this always-TAKE strategy SHARE with me?" No, it would TAKE. So the recipient would TAKE. ✓ The recipient does not extend cooperation to non-reciprocators.

The recipient's strategy satisfies both conditions of a conditional cooperator: it cooperates with CCs and does not subsidize non-reciprocators.

**Decision:** Since the recipient is a CC, the dictator's strategy says to SHARE.

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