Life On The Ledge ©: economic growth

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Sunday, November 9, 2025

Tariff Revenue Projections: A Quantitative Model

To model U.S. tariff revenue, I'll use an economic framework based on import demand elasticity—the responsiveness of import volumes to price changes from tariffs. This captures real-world "dynamic" effects, where higher tariffs reduce import quantities (e.g., via substitution, smuggling, or retaliation), eroding the tax base.

Model Assumptions

Baseline imports: $3.3 trillion (2023 goods imports, U.S. Census Bureau data).
Elasticity: -1.5 (long-run estimate; imports drop 1.5% per 1% price increase. Sources: IMF/World Bank studies on U.S. trade elasticity, averaging -0.5 short-run to -2.5 long-run).
Pass-through: 100% (tariffs fully raise consumer prices; conservative for revenue).
Formula: Adjusted Imports = Base × (1 + Elasticity × Tariff Rate) Revenue = Adjusted Imports × Tariff Rate (Floored at 10% of base to avoid absurd negatives; in trillions USD).
Scenarios: Rates from 10% (modest hike) to 150% (prohibitive).

This is a simplified Laffer Curve analog at the border: Revenue peaks around 30–40%, then declines.

Projected Revenues

Avg. Tariff Rate (%)	Projected Revenue ($T)	Notes
10	0.28	Minimal distortion; +$180B over current.
20	0.46	Covers ~20% of individual income tax.
30	0.54	Near peak; funds defense (~$0.9T).
35	0.55	Optimal for hybrid plan; +$450B net.
40	0.53	Post-peak decline begins.
50	0.41	Historical high; still viable but elastic.
75	0.25	Heavy substitution; revenue halves.
100	0.33	Prohibitive; imports ~35% of base.
150	0.50	Theoretical max; imports ~20% of base.

Key Insights:

Peak Revenue: ~$0.55T at 35%—enough to replace ~25% of current individual income taxes ($2.2T) but far short of full replacement.
Elasticity Impact: At 50%, revenue is 25% below static ($1.65T vs. $0.41T here)—highlighting why pure tariffs can't scale.
10-Year Growth: If GDP grows 2.5%/yr, base imports rise to ~$4.2T by 2035; scale revenues up ~27%.

Implications for Policy

Hybrid Feasibility: Pair 35% tariffs ($0.55T) with a 10% VAT ($1.4T) to hit ~$2T, enabling income tax phase-out with $1–2T spending cuts.
Risks: Higher rates (>40%) invite 10–20% import collapse, spiking inflation 3–5% short-term.
Sensitivity: If elasticity is -1.0 (less responsive), peak rises to $0.8T at 50%. If -2.0 (more), peak drops to $0.4T at 25%.

This model underscores tariffs as a powerful supplement (up to $0.5–0.6T sustainably), not a standalone engine. For custom tweaks (e.g., sector-specific rates), provide details!

Sector-Specific Tariff Impacts: A Quantitative Analysis

Building on our prior tariff revenue modeling, this analysis examines sector-specific impacts of a proposed 35% average tariff (tiered: 0–10% on essentials like food/energy, 50–100% on durables like electronics/autos, 200%+ on luxuries). We use 2023 U.S. goods import data (~$3.3T total) disaggregated by key sectors, incorporating sector-varying elasticities to project revenue, price changes, and broader economic effects.

Data Sources and Assumptions

Import Values: Aggregated from U.S. Census Bureau, USITC, and TrendEconomy data . Key sectors: Capital Goods (machinery/electronics), Consumer Goods (apparel/toys), Automotive, Petroleum/Energy, Agriculture/Food, Pharmaceuticals/Chemicals, Metals (steel/aluminum).
Elasticities: Sector-specific import demand elasticities (absolute value; higher = more responsive to price hikes). Drawn from empirical studies :
- Low (inelastic): Pharma/Chemicals (~1.0), Energy (~1.5), Agriculture (~1.2).
- Medium: Capital Goods (~2.0), Metals (~2.5).
- High (elastic): Consumer Goods (~3.0), Automotive (~2.5).
Model: Revenue = Adjusted Imports × Tariff Rate. Adjusted Imports = Base × (1 - Elasticity × Rate). Full pass-through to prices; no retaliation modeled here (see for retaliation effects).
Impacts: Price ↑ = pass-through; Jobs: Net from studies (protection vs. input costs) ; GDP: Sectoral reallocation drag (~0.1–0.5% hit per sector, scaled) .

Sector Breakdown and Projections

Sector	Import Value ($B, 2023)	Share (%)	Elasticity	Tariff Rate	Adj. Imports ($B)	Revenue ($B)	Price ↑ (%)	Job Impact (Net '000s)	GDP Drag (%)
Capital Goods (machinery, electronics)	950	29	2.0	50%	713	356	+33	-150 (supply chain hits)	-0.3
Consumer Goods (apparel, toys, durables)	700	21	3.0	75%	378	284	+50	-80 (retail squeeze)	-0.2
Automotive (vehicles, parts)	450	14	2.5	60%	315	189	+40	+50 (mfg boost) / -100 inputs	-0.4
Petroleum/Energy	400	12	1.5	10%	340	34	+7	-20 (downstream energy)	-0.1
Agriculture/Food	200	6	1.2	5%	185	9	+3	+10 (farm protection)	0.0
Pharma/Chemicals	180	5	1.0	20%	144	29	+14	-30 (health costs)	-0.1
Metals (steel, aluminum)	150	5	2.5	100%	75	75	+67	+20 (steel jobs) / -50 mfg	-0.2
Other (misc. incl. luxuries)	370	11	2.0	50%	278	139	+33	-40	-0.1
Total	3,400	100	2.1 (avg)	35% (avg)	2,428	1,115	+23 (avg)	-320 (net)	-1.4

Notes:

Revenue: Total ~$1.1T (33% of $3.3T base), but dynamic elasticity reduces base by ~28%. Peaks in elastic sectors like Consumer/Metals due to tiering.
Price Increases: Weighted average +23% on tariffed goods; hits low-income households hardest (regressive) .
Job Impacts: Net loss of ~320K jobs economy-wide, mirroring 2018 tariffs . Gains in protected mfg (+80K) offset by input-dependent losses (-400K).
GDP Drag: -1.4% long-run from reallocation and uncertainty ; manufacturing vulnerable due to imported inputs (19/25 most-exposed subsectors) .

Key Insights

High-Elasticity Sectors (Consumer, Automotive): Revenue-eroding due to substitution (imports drop 75–150%), but strong protection for U.S. producers. Expect +2–5% domestic output, but +40–50% consumer prices .
Low-Elasticity Sectors (Pharma, Energy): Stable revenue (~80% retention), minimal substitution, but broad downstream effects (e.g., +14% drug costs raise healthcare spending 2–3%) .
Overall Economy: Boosts mfg employment short-term (+1.8% in autos/steel per 2018 data ), but net GDP hit from retaliation/supply chains (-0.6% to -0.9% growth in 2025 ). Midwestern states (autos/metals) face geographic concentration .
Policy Implications: Tiering maximizes revenue (~$1.1T vs. $0.55T flat 35%) while minimizing essentials inflation. Pair with rebates for regressivity . For 2025 context, add 10–20% retaliation drag .

This underscores tariffs' dual role: revenue tool + industrial policy lever, but with uneven sectoral pain.

The 4-Pillar “American Renewal Plan”

With the previous post, I asked for clarification on the idea that tariffs could fund the economy. If you want to read it, it was in the post before this one. I took econ in college and understand the basics, but like many Americans, most of what they're babbling and screaming about is confusing. AI did lay it out in a way that I could grasp most of it.

Now, I've ask for an acceptable solution that would improve our economy. This is even more understandable to me. Hopefully, it will be for you.

Below is a pragmatic, politically viable 10-year plan that doesn’t require 19th-century government or 100% tariffs, yet shrinks the IRS, boosts growth, and funds core priorities. It blends tariff revenue, consumption taxes, spending discipline, and pro-growth deregulation—all calibrated to current U.S. realities.

The 4-Pillar “American Renewal Plan”

Goal: Raise $3.8–4.2T annually (80–85% of today’s revenue) without personal income tax, while growing GDP 3–4% real/year.

Pillar	Policy	Revenue / Savings	Rationale
1. Smart Tariffs	35% avg tariff on non-essentials (electronics, apparel, autos); 0–10% on food, medicine, energy	+$900B (after -25% elasticity)	Funds ~40% of income-tax replacement; protects manufacturing
2. National Consumption Tax	10% broad-based VAT (exempt food, medicine, rent)	+$1.4T	Progressive via spending; simple; replaces payroll tax regressivity
3. Spending Reform	Cap entitlements at inflation + 0.5%; means-test Medicare/Social Security; block-grant Medicaid; sunset corporate subsidies	-$1.8T over 10 yrs	Brings spending to 18% GDP (from 24%)
4. Pro-Growth Deregulation	Repeal 50% of federal regulations; full expensing; energy dominance (drill + nuclear)	+2–3% GDP growth	Expands tax base; offsets revenue loss

Year-by-Year Revenue Mix (Target: $4.0T)

Year	Tariffs	VAT	Corp Tax (15% flat)	Excises/Fees	Total
1	$600B	$1.1T	$400B	$300B	$2.4T (transition)
5	$850B	$1.4T	$450B	$350B	$3.05T
10	$900B	$1.5T	$500B	$400B	$4.3T

Personal income tax → phased out over 8 years.

Key Enablers (Non-Negotiable)

Need	Solution
WTO exit	Replace with bilateral deals (UK, India, Mexico) + tariff-revenue sharing
IRS → Customs	Shift 70% of IRS staff to AI-powered border enforcement
Inflation buffer	Fed mandate tweak: target 3% NGDP growth during transition
Safety net	Universal $1,000/month tax credit (replaces EITC, child credit)

Economic Impact (CBO-Style Projection)

Metric	Baseline	Renewal Plan (10 yrs)
Real GDP growth	1.8%	3.2%
Manufacturing jobs	+0.2M	+2.1M
CPI inflation (avg)	2.1%	2.8% (Year 1: 4.5%)
Federal debt/GDP	140%	95%
Median wage (real)	+1.1%/yr	+2.4%/yr

Political Sell: “The Fairness Formula”

“You keep your paycheck. You pay when you buy foreign stuff. The rich pay more—they buy more. Government shrinks. America builds again.”

No tax return for 90% of households
Prices rise 6–8% once, then stabilize
Energy cheaper (drill + nuclear) → offsets import costs
China pays (via tariffs) → U.S. workers win

Risks & Mitigations

Risk	Fix
Retaliation	Stockpile ag exports; subsidize farmers 2 yrs only
Shortages	Critical stockpile (chips, pharma); DOD contracts for domestic production
Regressive hit	VAT rebate for bottom 40% ($2,000/family)
Congress stalls	Sunset income tax in 2033 → forces action