Pith Number

pith:RSPXSJF5

pith:2026:RSPXSJF5SYURF4YG3JVMCBKJX6

not attested not anchored not stored refs pending

How Many Mechanisms? Measuring Parsimony in Risky Choice

Avner Seror

Most subjects' risky lottery choices concentrate on a few simple rules like salience and regret rather than full utility maximization.

arxiv:2601.02964 v4 · 2026-01-06 · econ.GN · q-fin.EC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RSPXSJF5SYURF4YG3JVMCBKJX6}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

for a majority of subjects, observed concentration exceeds what standard utility models generate on the same menus. The concentration organizes around salience thinking, modal-payoff focusing, and regret.

C2weakest assumption

That the chosen library of six rules is representative of the main mechanisms driving risky choices and that the index is not sensitive to the specific menus or rule definitions used.

C3one line summary

Risky choice data from lottery experiments exhibit more parsimony than standard utility models, with concentration around salience thinking, modal-payoff focusing, and regret.

Formal links

3 machine-checked theorem links

Receipt and verification

First computed	2026-05-29T02:05:38.954058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c9f7924bd962912f306da6ac10549bf9a27b4cc2720d63f9fc2196c567939cb

Aliases

arxiv: 2601.02964 · arxiv_version: 2601.02964v4 · doi: 10.48550/arxiv.2601.02964 · pith_short_12: RSPXSJF5SYUR · pith_short_16: RSPXSJF5SYURF4YG · pith_short_8: RSPXSJF5

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/RSPXSJF5SYURF4YG3JVMCBKJX6 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8c9f7924bd962912f306da6ac10549bf9a27b4cc2720d63f9fc2196c567939cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92733e5c6fc8128831ca81c006930a8243b64e4d686c2b30c644c740d1642725",
    "cross_cats_sorted": [
      "q-fin.EC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.GN",
    "submitted_at": "2026-01-06T12:19:49Z",
    "title_canon_sha256": "c5658d960cf5cdfe7e3095903147fd92fb904fdeeb9ff2b2d072ca04bb9a2e64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.02964",
    "kind": "arxiv",
    "version": 4
  }
}