System Change
Investor Due Diligence Report
substackEconomics
I write about the international financial system and its impact on society, the economy and the ecosystem.
9K
900 paid
N/A
Pricing
$7/mo
$70/yr annual option
$5K
900 paid subs
$5K/mo – $5K/mo(±0%)
3.7
46.7
0.56%
(comments + likes) / subscribers
Bi-weekly
0.7 posts/week
Score based on available components only.
| Component | Score | Weight |
|---|---|---|
| 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 | 9K | $5,759.78 | — |
| Mar 2026 | 9K | $5,759.78 | ~0% |
Platform Dependency
Hosted on substack subdomain
Key Person
Single-author publication — key-person dependency
Revenue Model
Active paid subscription tier
Subscriber threshold
9K subscribers — above the 5K category median for first paid tier
Has paid tier
Active paid subscription offering
Peer monetization
100% of 40 similar-size peers in Economics have paid tiers
Pricing position
$7/mo vs $8/mo category median (191 newsletters)
| Date | Monthly | Annual |
|---|---|---|
| Mar 2026 | $7 | $70 |
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.
| Engagement Rate |
| 47/100 |
| 30% |
| Paid Subscriber Ratio | 90/100 | 25% |
| John Rubino's Substack |
| 23K |
| N/A |
| $5/mo |
| substack |