faultlinesweekly

The Federal Reserve's nominal broad dollar index averaged 120.60 in July 2026, against 128.84 in January 2025 — a decline of roughly 6.4 percent over eighteen months on an index where January 2006 equals 100. The yen has gone the other way, averaging 162.33 per dollar in July 2026 against 158.68 in March. Two currencies, two directions, and in both cases the same reflex appears: a cheaper currency makes exports cheaper, cheaper exports sell better, so the trade balance improves. The reflex is not wrong. It is conditional, and the conditions are specific enough to check. The International Monetary Fund's own work — the most cited defence of the textbook channel — estimates that a 10 percent real effective depreciation is associated with a rise in real net exports averaging 1.5 percent of GDP. That is a real effect and it should not be waved away. But the same estimate carries a cross-country range of 0.5 to 3.1 percent of GDP, a spread of more than six to one. When the dispers...

A government announcing restrictions on moving money across its border is one of the few macro headlines that still produces a reflex. The reflex is to read the announcement as confirmation: reserves are depleted, the currency defence has failed, and the authorities have run out of conventional tools. That reading is frequently correct. It is also being applied to a category that no longer holds together as one thing. Since March 2022 the institution that writes the reference framework for this policy area has formally endorsed a class of capital controls imposed in the absence of any stress at all. Several advanced economies with no currency problem operate standing restrictions on foreign purchases of residential property and have done so for years. Meanwhile the crisis instrument proper — restrictions on money leaving — behaves in a way that makes the announcement date close to the least useful thing about it. The variable that carries information is not whether control...

Purchasing power parity is usually framed as a debating point — one ranking for people who want a developing economy to look large, another for people who want it small. That framing misses where the argument lands. Both conversion conventions are already hard-wired into machinery that allocates votes, sets borrowing terms and defines who counts as poor. A revision to the underlying price data is not a rhetorical event but a reclassification event, and the next one has a date attached. The World Bank's International Comparison Program released benchmark purchasing power parities for reference year 2021 covering 176 economies — the tenth cycle since the program began in 1968. The next benchmark uses reference year 2024, with results expected in 2027, and it will carry three payloads at once: new 2024 PPPs, revised 2021 estimates, and extrapolated figures for 2025 and 2026. Everything between benchmarks is extrapolation, built by applying relative inflation to the last benchmark. T...

A firmer dollar is supposed to be bad news for emerging market borrowers, and the mechanism is usually taught as arithmetic. Dollar liabilities are fixed in dollars. Local revenue is not. Every uptick in the exchange rate raises the real cost of debt service without anything happening inside the borrowing country. It is true for a single balance sheet, and has been the default frame for four decades. The first half of 2026 ran that experiment. The dollar firmed. The squeeze did not arrive where the rule predicts, and where borrowers did come under pressure, it travelled through a different channel. FAULT LINES WEEKLY · TRANSMISSION WATCH Two Channels, One Outcome Column First half 2026: the dollar channel and the energy channel pulled in opposite directions. DXY, YTD TO 30 JUN 2026 +2.91% Dollar firmer, not weaker EMBI GD SPREAD, END-Q2 235 bp Tighter by 53 bp in the quarter HORMUZ CRUDE TRANSIT 4.9 mb/d From 21.6 mb/d in Q4 2025 What the First Half Actually...

In February 2026, the official United States forecast for Brent crude averaged $58 per barrel for the year. The August 2026 update put the same annual average at $87 per barrel , with the third quarter near $85 and the fourth quarter at $78. A fifty percent revision to a full-year price forecast inside six months is not a modelling refinement. It is the arithmetic signature of a supply event. The instinctive reading is that oil exporters win together: higher prices, higher receipts, stronger currencies. The 2026 evidence says otherwise. Within the same six-month window, one group of exporters recorded double-digit improvements in external balances while another recorded the steepest growth downgrades in the world. Some exporting currencies appreciated. Others did not move at all, by design. The divergence was not noise around a common trend. It was the trend. What follows takes that divergence apart, then lays out three paths from here, each with the trigger that would confirm it....