---
name: macro-cycles
description: >
  Knowledge skill covering business cycle analysis, debt cycle frameworks, leading/coincident/lagging
  indicators, and practical cycle positioning. Use when determining where we are in the economic cycle
  and what historical patterns suggest comes next.
metadata:
  author: nirav
  version: "1.0"
compatibility: Designed for Claude Code
---

# Macro Cycles

## Core Framework: The Debt Cycle Engine

Economic cycles are fundamentally driven by credit creation and contraction. Ray Dalio's framework decomposes this into two overlapping cycles:

### Short-Term Debt Cycle (5-8 years)

The short-term debt cycle is the familiar business cycle, driven by the expansion and contraction of credit:

1. **Early Expansion** (credit growth accelerates): Interest rates are low from the prior downturn. Borrowing increases. Spending rises faster than production capacity. Employment begins to recover. Asset prices start recovering from depressed levels.

2. **Mid Expansion** (self-reinforcing growth): Rising incomes support more borrowing. Credit growth is healthy but not excessive. Corporate profits expand. This is the "Goldilocks" phase — growth without overheating.

3. **Late Expansion** (excess builds): Credit growth becomes aggressive. Asset prices overshoot fundamentals. Labor markets tighten, pushing wages up. Inflation pressures emerge. Central banks begin tightening.

4. **Contraction** (deleveraging): Tightening creates credit stress. Borrowers at the margin default. Spending contracts. Employment declines. Asset prices fall. Central banks eventually ease, setting up the next cycle.

**Key metric**: Credit growth relative to income growth. When credit grows faster than income for an extended period, the cycle is aging. When the gap is wide and rising, you are in late cycle.

### Long-Term Debt Cycle (75-100 years)

The long-term debt cycle tracks the secular accumulation and resolution of debt:

- **Upswing (decades)**: Each short-term cycle adds more debt than it resolves. Debt-to-income ratios trend higher across cycles. Interest rates trend lower to keep debt serviceable. This works until rates hit zero or debt burdens become unsustainable.

- **Top**: Debt burdens are at extremes. Interest rates are at or near zero (losing their stimulative power). Wealth gaps are wide. Political polarization increases. Central banks resort to money printing (QE) to service debts.

- **Deleveraging**: The resolution phase. Four levers are available: (1) austerity, (2) debt restructuring/defaults, (3) wealth transfers/taxation, (4) money printing/currency devaluation. A "beautiful deleveraging" balances all four. An "ugly" one leans too heavily on any single lever.

**Current positioning**: Most developed economies are in the late stages of a long-term debt cycle that began post-WWII. The 2008 GFC was a tremor. COVID-era fiscal/monetary response accelerated the endgame dynamics. Debt-to-GDP ratios in the US, Japan, and Europe are at or near historical extremes.

---

## Business Cycle Phases: Detailed Indicators

### Phase 1: Expansion (Early to Mid Cycle)

**Characteristics:**
- GDP growth accelerating from trough
- Unemployment falling, but still elevated
- Capacity utilization rising
- Credit conditions easing
- Corporate profits recovering
- Inventory rebuilding underway

**Key indicators signaling early expansion:**
- ISM Manufacturing PMI crossing above 50 (expansion territory)
- Initial jobless claims falling below 4-week moving average trend
- Yield curve steepening (long rates rising faster than short rates)
- Credit spreads narrowing (high-yield OAS compressing)
- Housing starts and building permits turning up
- Consumer confidence rebounding from lows

**Typical duration**: 12-24 months for early expansion; mid-expansion can last 2-4 years.

**Asset class behavior**: Equities outperform (especially cyclicals and small caps). Credit performs well as spreads tighten. Commodities begin recovering. Bonds underperform as yields rise.

### Phase 2: Peak (Late Cycle)

**Characteristics:**
- GDP growth decelerating from peak rate
- Unemployment at or near cycle lows (below NAIRU)
- Wage growth accelerating, compressing margins
- Capacity utilization above 80%
- Credit growth excessive, lending standards loosening
- Inflation pressures building

**Key indicators signaling late cycle / approaching peak:**
- Yield curve flattening or inverting (2s10s spread < 0 bp)
- ISM Manufacturing PMI peaking and starting to decline (still above 50)
- Conference Board LEI growth rate decelerating
- Senior Loan Officer Survey showing tightening standards
- Corporate profit margins peaking
- Unemployment rate 0.3-0.5% above cycle low triggers Sahm Rule recession watch

**Typical duration**: 6-18 months. Late cycle can persist longer than expected, especially if the Fed is slow to tighten.

**Asset class behavior**: Equities still positive but leadership narrows (quality and defensives outperform). Commodities often peak here. Credit begins underperforming. Cash becomes competitive.

### Phase 3: Contraction (Recession)

**Characteristics:**
- GDP declining (two consecutive quarters is the popular definition; NBER uses a broader assessment)
- Unemployment rising rapidly (Sahm Rule: 3-month average rises 0.5% above 12-month low)
- Industrial production falling
- Corporate profits declining
- Credit conditions tightening sharply
- Inventory liquidation

**Key indicators confirming contraction:**
- ISM Manufacturing PMI below 50 for 2+ months
- Payroll employment declining month-over-month
- Real personal income excluding transfers declining
- Real manufacturing and trade sales declining
- Initial jobless claims rising above 300K and accelerating
- Credit spreads widening sharply (high-yield OAS > 500 bp)

**Typical duration**: 8-18 months. Post-WWII average recession lasted 10 months (NBER dating).

**Asset class behavior**: Bonds rally (flight to quality). Equities decline 25-35% on average (S&P 500). Credit spreads widen. Cash and Treasuries are safe havens. Gold often outperforms.

### Phase 4: Trough (Bottom)

**Characteristics:**
- GDP contraction slowing, approaching zero
- Unemployment near peak (lags the cycle)
- Inventory levels depleted
- Central bank has cut rates significantly
- Credit conditions at tightest, beginning to stabilize
- Equity valuations at cycle lows

**Key indicators signaling trough formation:**
- Leading indicators stabilizing (Conference Board LEI stops declining)
- ISM New Orders component turning up (even if headline is still below 50)
- Initial jobless claims peaking and beginning to decline
- Yield curve steepening aggressively (front end drops as Fed cuts)
- Credit spreads peaking and starting to narrow
- Housing affordability improving

**Typical duration**: 2-6 months. Troughs are compressed; the turn is often sharp.

**Asset class behavior**: This is the highest-conviction buying opportunity. Equities bottom 3-6 months before the economy. Credit spreads peak before economic data troughs. The best risk-adjusted returns come from buying at maximum fear.

---

## Leading Indicators: The Early Warning System

### Conference Board Leading Economic Index (LEI)

The LEI is a composite of 10 leading indicators designed to signal turning points 7-12 months in advance. Components and their weights:

1. **Average weekly hours, manufacturing** — Hours get cut before workers get fired
2. **Average weekly initial claims for unemployment** (inverted) — Rising claims signal deterioration
3. **Manufacturers' new orders, consumer goods** — Forward demand signal
4. **ISM Index of New Orders** — Diffusion measure of demand breadth
5. **Manufacturers' new orders, nondefense capital goods excl. aircraft** — Business investment intentions
6. **Building permits, new private housing** — Construction is rate-sensitive and forward-looking
7. **S&P 500 stock price index** — Market prices in expectations
8. **Leading Credit Index** — Credit conditions composite
9. **Interest rate spread, 10-year Treasury minus fed funds rate** — Yield curve as policy signal
10. **Average consumer expectations for business conditions** — Sentiment as demand proxy

**Interpretation rules:**
- Six consecutive monthly declines in LEI has preceded every recession since 1960
- The year-over-year change falling below -4% is a strong recession signal
- The diffusion index (% of components improving) below 50% for 6+ months signals contraction
- False positives do occur (1966, 1998, 2023) — always cross-reference with other data

### Yield Curve

The single most reliable leading indicator of recession:

- **2s10s spread** (10-year Treasury minus 2-year Treasury): Has inverted before every recession since 1955 with only one false positive (1966 credit crunch). Typical lead time: 6-24 months from first inversion to recession start. The inversion itself is less important than the subsequent re-steepening, which often coincides with the recession beginning (the market prices in rate cuts).

- **3m10y spread** (10-year Treasury minus 3-month T-bill): Preferred by the Fed's own research (Estrella and Mishkin model). A sustained negative spread (3+ months) has an 85%+ hit rate for predicting recession within 12 months.

- **Near-term forward spread** (18-month forward 3-month rate minus current 3-month rate): Engel and Estrella's preferred measure. Captures market expectations of future policy rates.

**Why the yield curve works**: It reflects the market's expectation of future short-term rates. Inversion means the market expects the central bank will need to cut rates — i.e., the economy will weaken enough to force easing.

### Purchasing Managers' Indices (PMIs)

- **ISM Manufacturing PMI**: Below 50 = contraction in manufacturing. Below 45 typically aligns with recession. The New Orders minus Inventories spread is a leading indicator within the PMI.
- **ISM Services PMI**: Covers 70%+ of the economy. Below 50 is a stronger recession signal than manufacturing alone, given the service-heavy US economy.
- **Global PMI composites**: Useful for assessing synchronized global slowdowns vs. isolated weakness.

### Other Key Leading Indicators

- **Building permits**: One of the most reliable. Housing is rate-sensitive and leads the cycle by 12-18 months. A 20%+ decline from peak is a recession warning.
- **Initial jobless claims**: Real-time labor market stress. A 4-week moving average rising 10-15% from cycle lows is an early warning. Crossing 300K (in a pre-COVID labor market) signals stress.
- **Consumer confidence (Conference Board)**: The Expectations component specifically leads; present situation is coincident. A spread where expectations fall well below present situation (negative spread) signals coming deterioration.
- **Real M2 money supply**: Contraction in real money supply (M2 adjusted for inflation) leads economic weakness by 12-18 months.

---

## Coincident Indicators: Confirming the Present

These confirm which phase you are currently in. NBER uses four primary coincident indicators:

1. **Nonfarm payroll employment**: The most-watched. A positive monthly change means expansion is ongoing. Three consecutive negative months virtually confirms recession.
2. **Real personal income excluding transfer payments**: Captures organic income growth, stripping out government support. Declining = consumers are weakening.
3. **Industrial production index**: Manufacturing and mining output. Confirms breadth of economic activity.
4. **Real manufacturing and trade sales**: Volume of goods moving through the economy.

**Practical rule**: If 3 of 4 coincident indicators are declining simultaneously, you are in recession regardless of what GDP says.

---

## Lagging Indicators: Confirmation and Extrapolation Traps

Lagging indicators confirm what has already happened. They are dangerous because they tempt investors to extrapolate the recent past:

- **Unemployment rate**: Peaks 3-9 months AFTER the recession ends. Waiting for unemployment to peak before buying means missing the bottom entirely.
- **Core CPI**: Inflation is sticky and lags the cycle. High inflation readings at the start of a recession do not mean the economy is strong.
- **Commercial and industrial loans outstanding**: Credit growth lags because loans made during expansion are still on books during contraction.
- **Average prime rate**: Banks adjust lending rates after the cycle has already turned.
- **Consumer debt-to-income ratio**: Peaks after the expansion as households draw down savings and increase borrowing during the late cycle.

**The lagging indicator trap**: Sell-side research and media commentary are dominated by lagging data. "The unemployment rate is still low, so we're fine" is a classic late-cycle mistake. By the time unemployment rises meaningfully, equities have typically already fallen 15-20%.

---

## Kondratieff Long Waves

Nikolai Kondratieff identified 40-60 year cycles driven by technological innovation and capital investment:

1. **Spring (Expansion)**: A new technology platform emerges. Capital investment rises. Growth accelerates. Inflation is moderate. (e.g., post-WWII boom, 1950s-1960s)
2. **Summer (Stagflation)**: Growth peaks. Inflation surges as demand outstrips capacity. Social tensions rise. (e.g., 1970s oil shocks, Vietnam-era)
3. **Autumn (Plateau)**: Financial innovation extends the cycle. Asset prices rise faster than the real economy. Debt builds. A false sense of permanent prosperity. (e.g., 1980s-2000s financialization, the "Great Moderation")
4. **Winter (Depression/Reset)**: Debt burdens become unsustainable. Deleveraging, defaults, deflation (or stagflation if met with money printing). Social and political upheaval. (e.g., 2008-??)

**Practical relevance**: Long waves are better as conceptual frameworks than timing tools. The key insight is that secular shifts in innovation, demographics, and debt create multi-decade regimes that shape what "normal" looks like for growth and inflation. The current environment (post-2020) resembles the transition from Autumn to Winter — massive debt, reliance on financial engineering, and a search for the next productivity platform (AI?).

---

## Historical Cycle Durations (Post-WWII US)

| Cycle (Peak to Peak) | Expansion Duration | Recession Duration | What Made It Unique |
|---|---|---|---|
| 1945-1948 | 37 months | 11 months | Post-war demobilization |
| 1948-1953 | 45 months | 8 months | Korean War stimulus |
| 1953-1957 | 39 months | 10 months | Eisenhower fiscal restraint |
| 1957-1960 | 24 months | 8 months | Short, mild, Fed tightened too early |
| 1960-1969 | 106 months | 10 months | Vietnam + Great Society fiscal expansion |
| 1969-1973 | 36 months | 11 months | Nixon wage/price controls, oil shock |
| 1973-1980 | 58 months | 16 months | Stagflation, oil embargo |
| 1980-1981 | 12 months | 6 months | Volcker shock tightening |
| 1981-1990 | 92 months | 8 months | Reagan deficits, S&L crisis |
| 1990-2001 | 120 months | 8 months | Tech boom, globalization, Greenspan put |
| 2001-2007 | 73 months | 18 months | Housing bubble, GFC, worst since Depression |
| 2009-2020 | 128 months | 2 months | Longest expansion on record, COVID shock |
| 2020-?? | Ongoing | — | Fiscal-monetary mega-stimulus, inflation surge |

**Key observation**: Expansions have gotten longer over time (average 35 months in 1945-1980 vs. 100+ months in 1990-2020). This is partly due to better monetary policy, partly due to ever-larger interventions delaying recessions (but potentially making them worse when they arrive).

---

## Cycle Positioning Framework: "Where Are We?"

Use this decision tree to assess current cycle positioning:

### Step 1: Check the Leading Indicators
- Is the Conference Board LEI declining YoY? If >-4% YoY, recession risk is elevated.
- Is the yield curve inverted (3m10y)? If yes and has been for 3+ months, recession within 12 months is likely.
- Are building permits declining >15% from peak? If yes, housing is already weakening.
- Are initial claims trending up from cycle lows? If yes, labor market is cracking.

**If 3+ leading indicators are flashing warning**: You are late cycle or approaching contraction.

### Step 2: Check the Coincident Indicators
- Are payrolls still positive? If yes, recession has not started.
- Is industrial production growing? If yes, economic activity is still expanding.
- Is real personal income (ex-transfers) growing? If yes, consumers still have spending power.

**If coincident indicators are still positive but leading indicators are negative**: You are in late cycle. The recession has not arrived but the clock is ticking. This is where most people get caught — data looks fine backward but the forward picture is deteriorating.

### Step 3: Check the Lagging Indicators (for Contrary Signals)
- Is unemployment at cycle lows? If yes, this confirms late cycle — not that everything is fine.
- Is inflation still elevated? If yes, the Fed may stay tight too long, increasing recession risk.
- Is consumer debt still rising? If yes, households are stretching, which is a late-cycle behavior.

**If lagging indicators look "great"**: This is the most dangerous setup. Everything looks perfect in the rearview mirror. Leading indicators are the windshield.

### Step 4: Assign a Cycle Phase

| Phase | Leading | Coincident | Lagging |
|---|---|---|---|
| Early Expansion | Improving | Bottoming/turning up | Still weak |
| Mid Expansion | Positive, stable | Solidly positive | Improving |
| Late Expansion | Deteriorating | Still positive | Look "great" |
| Contraction | Deeply negative | Declining | Peak then start falling |
| Trough | Stabilizing / turning | At lows | Still deteriorating |

### Step 5: Cross-Reference with Credit Conditions
- Are credit spreads (HY OAS) widening or narrowing?
- Is the Senior Loan Officer Survey showing tightening or easing?
- Is bank lending growing or contracting?

Credit is the lubricant of the cycle. Tightening credit conditions amplify downturns. Easing credit conditions extend expansions. If credit conditions diverge from other indicators, credit usually wins — it leads the real economy.

### Step 6: Assess Policy Response Capacity
- How much room does the Fed have to cut? (Current rate minus zero)
- How much fiscal space exists? (Deficit already large = less room for counter-cyclical spending)
- Is the political environment conducive to fiscal stimulus?

Policy response capacity determines whether the next downturn is mild (ample room to ease) or severe (limited ammunition). The post-2020 environment is characterized by reduced policy space on both monetary and fiscal dimensions.

## Related Skills

- **`monetary-regime`** (Regime Intelligence) — always consult alongside macro-cycles; monetary policy is the primary transmission mechanism for cycle dynamics
- **`fiscal-regime`** (Regime Intelligence) — consult when assessing how government spending and debt trajectories amplify or dampen the cycle
- **`asset-allocation`** (Portfolio Construction) — consult when translating cycle phase identification into concrete portfolio positioning and regime-based tilts

## Cross-Domain Connections

- **Data-science/modeling/time-series**: Cycle positioning uses time-series decomposition (trend, seasonal, cyclical components), structural break detection, and leading indicator analysis — all time-series methodology. Stationarity tests (ADF/KPSS) detect when a cycle regime has fundamentally shifted.
- **Data-science/ml-engineering/drift-detection**: Regime changes ARE concept drift — models trained on expansion data degrade in contraction. The drift-detection framework (monitoring for distributional shifts in inputs and outputs) is the quantitative backbone of regime change detection.
