在8月27日至29日举行的杰克逊霍尔央行年会上，美联储主席凯文·沃什（Kevin Warsh）展现出出人意料的鹰派立场。针对此前因沟通含糊引发的信任危机以及对财政部长斯科特·贝森特（Scott Bessent）在中期选举前干预债市的担忧，沃什明确了基于通胀压力与劳动力市场韧性的政策反应函数，使得金融市场对9月加息的预期概率攀升至50%以上。尽管这番表态暂时平抑了长期收益率的即时攀升，但长端国债收益率随后一周再度恢复上行通道，凸显出货币口头干预在庞大债券供应与财政失衡面前的局限性。

高额公共债务与利率攀升的叠加正在重塑全球宏观金融风险。哈佛大学肯尼斯·罗格夫（Kenneth Rogoff）痛批早年认定“低利率将永久持续从而支撑无节制借债”的“宏观觉醒1.0”教条；康奈尔大学埃斯瓦尔·普拉萨德（Eswar Prasad）则指出，投资者以往为美国国债安全性支付的“便利溢价”如今已完全消失。虽然美元霸权在稳定币等金融创新的潜在支撑下依然稳固，但巨额存量债务极易诱发政治权力干预央行独立性以寻求财政赤字货币化。此外，关于稳定币与代币化存款的创新辩论也暴露出分歧，达雷尔·达菲（Darrell Duffie）看好可编程资金对跨境结算的优化，而杜雯欣（Wenxin Du）等学者则指出传统金融科技往往更具成本与操作优势。

与此同时，寄望于人工智能化解经济困境的“宏观觉醒2.0”设想遭遇严峻审视。沃什指出，AI算力基础设施的巨额资本开支在短期内更可能通过推升能源与设备需求而加剧通胀。普林斯顿大学马库斯·布鲁纳迈尔（Markus Brunnermeier）进一步警示，高频交易AI凭借对人类行为的“非对称理解”在具备高透明度的同时保持自身算法黑箱，可能对金融体系稳定性构成系统性冲击，甚至主张建立纯人工交易市场或推行随机化央行决策；尽管拉古拉姆·拉詹（Raghuram Rajan）对此类极端隔离措施持保留态度，但在庞大债务与AI技术剧变的双重夹击下，央行面临着前所未有的制度挑战。

At the Federal Reserve’s Jackson Hole symposium held on August 27th–29th, Fed Chair Kevin Warsh delivered an unexpectedly hawkish policy steer, partially dispelling previous market skepticism regarding his strategic clarity and political independence from the administration. Focusing explicitly on persistent inflationary pressures alongside employment stability, Mr Warsh articulated a rigorous policy reaction function that elevated market-implied odds of a September interest-rate hike to slightly above 50%. Although this orthodox posturing briefly calmed long-term borrowing costs, Treasury yields quickly resumed their upward trajectory the following week, highlighting the inherent limits of monetary jawboning against the backdrop of pre-midterm bond market interventions by Treasury Secretary Scott Bessent.

The symposium underscored escalating systemic risks arising from the confluence of elevated sovereign indebtedness and high interest rates. Kenneth Rogoff criticized the early-2020s orthodoxy of "macro woke 1.0"—the flawed conviction that borrowing costs would remain permanently depressed, thereby justifying unlimited fiscal expansion. Presenting empirical findings, Eswar Prasad demonstrated that the traditional "convenience yield" investors once conceded for the perceived safety of US Treasuries has entirely evaporated. While the dollar's transactional supremacy may receive secondary reinforcement from stablecoin adoption—a prospect debated between Darrell Duffie, who emphasized programmable payment efficiencies, and Wenxin Du, who noted the superior simplicity of traditional fintech—astronomical debt burdens create potent political incentives to compromise central-bank autonomy through fiscal dominance.

Concurrently, delegates cast doubt on "macro woke 2.0," the speculative notion that artificial intelligence will painlessly resolve macroeconomic imbalances. Mr Warsh cautioned that massive near-term capital expenditure on AI data centers would more likely stoke inflation by consuming critical resources. Furthermore, Markus Brunnermeier presented findings warning that autonomous algorithmic traders possess an "asymmetric understanding"—comprehending human patterns while remaining structurally inscrutable—which could trigger severe financial instability. While Brunnermeier’s radical proposals for human-only trading venues and randomized central-bank decisions were contested by Raghuram Rajan, the emerging reality confirms that central bankers navigate an increasingly treacherous terrain marked by mounting public debt, political encroachment, and algorithmic volatility.

Source: Central banking has a forbidding future

Subtitle: But Kevin Warsh has bought himself time

Dateline: Sep 3rd 2026