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CFA Updated
How does TFP growth turn into a long-run equity return forecast?
Short answer: TFP growth feeds into trend GDP growth, which approximately equals trend corporate earnings growth, which combined with dividend yield equals long-run real equity returns. The chain runs through the Gordon growth model logic, and TFP is the key input that determines whether long-run growth is sustainable or stalls.
What is the difference between capital deepening and TFP growth, and which one matters more for sustainable long-term growth?
Short answer: capital deepening means giving each worker MORE CAPITAL TO WORK WITH (more machines, more computers, more equipment). TFP growth means using the SAME capital and labor MORE EFFICIENTLY (better technology, better management, better organization). The first runs into diminishing returns and stalls. The second has NO upper limit and sustains growth indefinitely.
Why is TFP called a "residual"? It feels like we are giving up by lumping everything into one term.
Short answer: TFP is called a residual because we compute it INDIRECTLY. We measure GDP growth, capital growth, and labor growth — then assign whatever is LEFT OVER to "productivity." We do not measure productivity directly. The label "residual" is accurate but does not mean we are giving up — it means we have a disciplined accounting framework that isolates the unexplained portion.
Why do emerging-market trend growth forecasts need bigger adjustments from history than developed-market forecasts?
Emerging markets undergo rapid structural change in all four components — labor force, participation, capital deepening, and TFP catch-up. As the economy gets richer, capital returns fall and TFP catch-up shrinks. Naive extrapolation almost always over-shoots; adjust downward.
What is the practical difference between capital deepening and TFP? They both seem to be about productivity.
Capital deepening is growth in capital per worker — bounded by diminishing returns. TFP is growth not explained by labor or capital — captures technology and efficiency and is not bounded the same way. Two countries with the same labor productivity growth can have very different trajectories depending on the mix.
How do I forecast a country's trend GDP growth using the labor + productivity decomposition? Walk me through the inputs.
The trend rate of real GDP growth equals growth in labor input plus growth in labor productivity. Labor input growth has two parts — growth in potential labor force size and growth in participation rate. Labor productivity growth has two parts — capital deepening and total factor productivity. Walk through each component, extrapolate baselines, and adjust for known structural changes.
What is the rule about active vs retired lives and pension plan duration?
Short answer: duration is the weighted-average time until a liability cash flow. Active employees have their biggest cash flows DECADES in the future (when they retire). Retired employees are receiving cash flows NOW. So a plan dominated by retirees has cash flows happening soon = short duration; a plan dominated by active employees has cash flows happening far in the future = long duration.
Why does it matter if the pension fund is invested in stocks similar to the sponsor's business?
Short answer: holding equities is fine; holding equities CORRELATED with the sponsor business is the problem. When industrial markets crash, the sponsor revenue drops AND the fund assets drop AT THE SAME TIME. Exactly when the plan needs the sponsor to contribute MORE to fill the funding gap, the sponsor has LESS cash to give. The two risks stack — that is the double exposure problem.
Why does an early retirement provision lower risk tolerance but high turnover does not — both reduce liabilities, right?
Short answer: they reduce DIFFERENT THINGS. Early retirement reduces the DURATION of liabilities (cash flows shift earlier in time), which directly drives the risk-tolerance question. Higher turnover reduces the SIZE of the PBO (some employees never vest), but does not necessarily change WHEN the remaining benefits get paid. The LM5 risk-tolerance question is specifically about duration, not dollar size.
How exactly does the asset allocation change as I move from accumulation to consolidation to spending?
Short answer: as you age, your human capital shrinks (fewer years of future income left) and your financial capital grows. The bond-like HC that previously DOMINATED your balance sheet now represents a smaller share of total wealth, so your financial portfolio must rotate AWAY from equities (which were compensating for the bond-like HC) and TOWARD bonds. By the spending phase, HC is near zero and your financial portfolio looks much closer to a traditional retiree allocation.
I run my own startup. My income is volatile and tied to my industry. Should I hold ZERO equities in my financial accounts?
Short answer: likely yes, your advisor is applying the wrong framework. Because your human capital is EQUITY-LIKE (volatile + correlated with tech equity markets), you are already heavily exposed to equity risk through your business income. To balance your TOTAL wealth, your financial portfolio should hold MORE bonds, not the standard 60/40 stocks/bonds mix.
Why does the textbook recommend 100% equities for a young employee? That sounds extremely aggressive.
Short answer: the 100% equities for a young employee answer is NOT a risk-tolerance recommendation, it is a math result. When you combine HER HUMAN CAPITAL (the present value of all her future salary, which behaves like a giant bond) WITH her financial assets, her OVERALL portfolio is still mostly bond-like. To get her TOTAL-WEALTH equity exposure up to a reasonable target like 60%, the financial portion has to tilt heavily — often to 100% — toward equities.
What is the difference between Brinson-Hood-Beebower and Brinson-Fachler? Which is on the exam?
Short answer: the current CFA Level III curriculum primarily uses Brinson-Fachler (BF) because the allocation effect has more intuitive signs (overweighting a sector that beat the overall benchmark = positive allocation, regardless of absolute sector return). Brinson-Hood-Beebower (BHB) is still taught for historical context.
How do I identify the OPTIMAL sector decision in a Brinson attribution table?
Short answer: optimal almost always means BOTH the allocation effect AND the selection effect are positive in the same row. The manager got both decisions right — overweighted (or correctly underweighted) the right sector AND picked the right stocks within it. The highest single positive number does NOT win unless the OTHER column is also positive.
Why is my allocation effect NEGATIVE for a sector that had positive returns?
Short answer: the allocation effect sign depends on TWO things at once — whether you overweighted or underweighted the sector AND whether the sector beat the OVERALL benchmark. Technology returned 10.10% (good in absolute terms), but if your portfolio UNDERWEIGHTED Technology while Technology was beating the overall benchmark, you DID miss out — and the allocation effect correctly captures that as negative.
When should I use a first-party SNT vs a third-party SNT, and what is this Medicaid payback?
Short answer: the difference is whose money funds the trust. A first-party SNT is funded with the BENEFICIARY own assets (typically a settlement or inheritance) and must include a Medicaid payback provision. A third-party SNT is funded by SOMEONE ELSE (parents, grandparents) and has NO payback. For a parent-funded plan, third-party is almost always the right answer.
How bad are the compressed trust tax brackets really? Show me the dollars.
Short answer: the federal tax difference between leaving income inside the trust vs distributing it to a low-bracket beneficiary can easily exceed 50,000 of income annually. For a multi-decade trust, the cumulative cost of accumulation can be six figures.
Why does the trust pay tax on income instead of the beneficiary?
Short answer: because the IRS treats an irrevocable trust as a SEPARATE TAXPAYER from both the grantor and the beneficiary. The trust legally owns the assets, so it earns the income, and it pays the tax — unless and until the income is actually distributed to the beneficiary, in which case the beneficiary picks up the tax, or unless the trust is a grantor trust, in which case the grantor pays.
If I have a revocable living trust, why do I still need a will? Does not the trust avoid probate?
Short answer: the revocable living trust DOES avoid probate — for assets that are actually titled in the trust. The pour-over will is the safety net that catches anything you forgot to transfer. Without it, anything you missed would pass by state intestacy law to whoever the state thinks is your closest relative, possibly contrary to your wishes.
How exactly does a QTIP trust let me provide for my second wife AND make sure my kids from the first marriage inherit?
Short answer: the QTIP (Qualified Terminable Interest Property) trust is specifically designed for second-marriage scenarios. It gives your surviving wife mandatory income for life but gives YOU (via the trust agreement you sign now) complete control over who receives the remaining principal when she dies. The trustee must pay her all trust income annually and may give her limited principal access at your direction, but she cannot redirect the remainder...
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