The work this thesis is built on.
Hard Asset Reserve does not publish primary research. The thesis the Office operates inside rests on four external bodies of work, each established before the Office existed and maintained independently of it. Named here for readers who want to verify the analytical ground beneath the brief.
The Office is not affiliated with, sponsored by, or endorsed by any of the institutions or authors named on this page. Citations are provided to source material where public; where citation depth is engagement-specific, the relevant references are supplied inside the brief.
The thesis is not ours. The architecture around it is.
What the portfolio-efficiency research establishes.
The case for a non-zero allocation to physical precious metals in a diversified long-horizon portfolio rests on multi-decade data on correlation properties and stress-period behavior — work developed at Ibbotson Associates and reflected in the World Gold Council’s strategic-asset research.
Two figures below, assembled from published monthly and year-end index data. The first shows what happens to a diversified portfolio in stress windows. The second shows what happens across the full cycle that contains those windows.
Not an allocation recommendation. The Office advises on the T1 physical reserve layer only; the decision to size a reserve within a diversified portfolio remains with the client and the client’s investment, legal, and tax counsel. Historical data. Not a forecast.
Terminal wealth per $1 invested, 1973 — 2024. 60/40 vs. 55/35/10 with 10% physical gold. Within 1% of each other across 52 years.
Less drawdown in every stress window, 1973 — 2022. Range of percentage- point reduction in maximum peak-to-trough drawdown across the five episodes in EC.01.
Across the full cycle. The gold-inclusive portfolio did not sacrifice return to obtain the drawdown protection — it arrived at the same terminal wealth with a materially smoother path.
The drawdown protection cost nothing.
In stress windows, a directly-titled physical-gold slice has historically reduced the depth of portfolio drawdown. Across the full cycle that contains those windows, the same portfolio arrived at approximately the same terminal wealth as the no-gold baseline — with a materially smoother path. The protection was not paid for with performance. The reserve layer the Office builds is the same structural layer this research measures.
John Exeter
John Exeter, a former Vice President of the Federal Reserve Bank of New York and later chairman of Citibank’s international operations, developed what has come to be known as the inverted capital stack, or Exeter’s pyramid. The ordering places asset classes by the quality of the claim each one represents — derivatives and private capital at the top, where claims are most contingent and most intermediated; directly owned physical precious metals at the base, where the position is not a claim on anyone at all.
Exeter’s ordering is not an allocation model. It is a way of reading a balance sheet structurally. Each layer rests on the layer beneath it, and under system-wide stress, claims have historically degraded from the top down. The base is the layer that does not require any counterparty to remain solvent to be worth what it is.
The Office uses Exeter’s ordering as its organizing structure. The T1–T4 language on the Capital Stack page is a modern restatement of it. The Office does not advise on the T2–T4 layers; it builds the T1 layer with the discipline appropriate to a base asset.
Exeter’s ordering was developed across speeches and writings in the 1970s and early 1980s, during the period of monetary dislocation following the end of the Bretton Woods system. Primary source material is cataloged in financial-history archives rather than in a single canonical paper.
Ibbotson Associates
Roger Ibbotson founded Ibbotson Associates in 1977 and produced the Stocks, Bonds, Bills, and Inflation (SBBI) data series — for decades the standard long-horizon return data used across institutional finance. The firm was acquired by Morningstar in 2006, and Ibbotson’s academic work on asset-class behavior continues through Yale and through the Ibbotson research group.
A strand of that work, developed with co-authors over multiple papers, examined the role of precious metals in diversified long-horizon portfolios. The findings are consistent across specifications: modest allocations to precious metals have historically improved the risk-adjusted efficiency of a diversified portfolio across multi-decade horizons, because the correlation properties of metals differ from those of equity and credit under stress conditions.
The Ibbotson work establishes that there is a defensible analytical case for non-zero allocation to the asset class. It does not address the form of ownership. The Office’s thesis starts where the Ibbotson work ends: a paper claim on the metal and a directly-titled position in the metal behave differently in the conditions under which the allocation was justified in the first place.
Specific paper citations within the Ibbotson corpus on precious metals are held for the brief rather than the public page. The Office will supply full citations as part of any engagement where allocation rationale is being assembled for an advisor or counsel.
World Gold Council
The World Gold Council is the market-development organization for the gold industry. Its research function produces the most comprehensive publicly available body of work on gold’s role as a strategic asset, including the annual Gold Demand Trends series, the Central Bank Gold Reserves survey, and the Gold in the International Monetary System studies.
Two strands of Council research are relevant to the reserve thesis. The first is the correlation and liquidity analysis that supports the case for gold as an institutional asset — work used by sovereign wealth funds, central banks, and pension systems in formal reserve policy. The second is the documented behavior of central banks as physical holders: since 2009, central bank net purchases have been positive every year, a multi-decade reversal from the preceding period. Central banks hold directly-titled physical metal in institutional depositories, not exposure through funds.
The Council is industry-sponsored, and the Office cites its work with that context in view. The Council’s methodological disclosures are public; its data are widely used across the institutional research community.
CPM Group
CPM Group is an independent commodities research and management consulting firm founded in 1986 by Jeffrey Christian. Its annual Gold Yearbook, Silver Yearbook, and Platinum Group Metals Yearbook are among the most cited sources on the physical structure of the precious-metals markets: mine supply, scrap flow, fabrication demand, investor holdings, and warehouse inventories.
CPM is not industry-sponsored, which matters for the way its data is read. The firm’s long-form work on exchange inventories, the scale of retail versus institutional physical flow, and the composition of allocated and unallocated holdings provides the empirical basis for claims about physical market structure that would otherwise rest on assertion.
The Office relies on CPM-style supply-and-flow data when assembling the brief. It also informs the conversation about product form — Good Delivery bars, kilo bars, sovereign-coin formats, and retail-grade bars — and why each has a different liquidity profile on exit.
The thesis, applied to your situation.
The four bodies of work above give the thesis its analytical ground. A reviewed Strategy Brief is the document that applies it to a specific balance sheet — with the relevant citations, the rationale for each choice, and the questions to resolve before implementation.
The brief is the deliverable. The conversation follows the brief. Every month without the layer is a month the foundation of your stack is missing.