Economics Matters by Laurence Kotlikoff
Investor Due Diligence Report
substackEconomics
Economics can make a massive difference - collectively and personally.
137K
3.5K paid
+3.5%
Insufficient data
23 of 30 days needed
Pricing
$25/mo
$300/yr annual option
$79K
3.5K paid subs
$79K/mo – $79K/mo(±0%)
16.3
26.9
0.03%
(comments + likes) / subscribers
Weekly
1.3 posts/week
56/100
Variable (~5.9d avg)
| Newsletter | Subscribers | Weekly Growth | Price | Platform |
|---|---|---|---|---|
| Kyla’s Newsletter | 156K | +0.7% | $10/mo | substack |
| Geld für die Welt | 41K | N/A | $5/mo | substack |
| Alex Krainer's Substack | 34K | N/A | $5/mo | substack |
| Rational Optimist Society | 26K | N/A | Free | substack |
| Month | Subscribers | Est. Revenue | Change |
|---|---|---|---|
| Feb 2026 | 123K | $81,157.5 | — |
| Mar 2026 | 123K | $81,157.5 | ~0% |
| Apr 2026 | 125K | $82,485 | ~0% |
| May 2026 | 133K | $87,750 | +6.4% |
Platform Dependency
Hosted on substack subdomain
Publishing Consistency
Variable publishing frequency
Key Person
Single-author publication — key-person dependency
Audience Concentration
Some posts outperform significantly
Subscriber threshold
137K subscribers — above the 5K category median for first paid tier
Has paid tier
Active paid subscription offering
Pricing position
$25/mo vs $8/mo category median (191 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $25 | $300 |
Disclaimer: This report is generated automatically based on publicly available data and proprietary estimation models. Estimated subscriber counts are derived from engagement patterns and should be verified through direct disclosure. Revenue estimates are based on known pricing and estimated paid subscriber counts. This report is for informational purposes only and should not be the sole basis for investment decisions.
| Component | Score | Weight |
|---|---|---|
| Engagement Rate | 19/100 | 30% |
| Paid Subscriber Ratio | 78/100 | 25% |
| Growth Consistency | 78/100 | 15% |
| Publishing Consistency | 53/100 | 10% |
| John Rubino's Substack |
| 23K |
| N/A |
| $5/mo |
| substack |
Revenue Model
Active paid subscription tier