Ketian Zhang

The standard story about Chinese coercion is a story about reflexes. Beijing, the narrative runs, lashes out at anyone who crosses it — punishing a Nobel committee here, a missile-defence deployment there — with the wounded pride of a rising power that cannot tolerate slights. Ketian Zhang looked at the actual record and found something that did not fit the story at all. China, she showed, coerces rarely. It is highly selective about whom it punishes, when, and with what tools. And — most counterintuitively — as it has grown stronger, it has used military force less, not more. Beijing is not a reflexive bully. It is, in her memorable formulation, a “cautious bully.”

That correction matters far beyond the seminar room. If China coerces by calculation rather than temper, then its coercion is predictable — and what can be predicted can be deterred, priced in, and planned around. Zhang turned a question about Chinese psychology into a question about Chinese cost-benefit analysis, and in doing so gave Western policymakers a far more useful map.

From Zhejiang to MIT¶

Zhang is Associate Professor of International Security at George Mason University’s Schar School of Policy and Government. Her path to the subject is itself revealing: she began university at Zhejiang University in China before transferring to the University of Wisconsin, then took her doctorate at MIT, where she trained under M. Taylor Fravel — the leading scholar of China’s territorial disputes — in the empirically dense, primary-source-driven tradition of MIT security studies. The lineage shows. Her work is built on Chinese-language documents and hundreds of hours of interviews with Chinese and foreign officials, not on inference from headlines.

Her research sits deliberately at the seam between international security and political economy — the place where, in an age of integrated supply chains, a decision to coerce is also a decision to absorb economic costs. That is the insight her whole framework turns on.

The Calculus of Coercion¶

Her 2023 book, China’s Gambit: The Calculus of Coercion, begins with a puzzle rather than an answer. Since 1990, China has faced many challenges to its core interests — in the South and East China Seas, over Taiwan, over Tibet and visits by the Dalai Lama. Yet it has been, as the book puts it, curiously selective in the timing, the target, and the tools of its response. Why coerce in some cases and not in others that look materially identical? And why, so often, reach for economic and diplomatic punishment rather than force?

Zhang’s answer is “cost-balancing theory.” Beijing weighs three things. The first is the need to establish a reputation for resolve — to signal firmness so that future challengers think twice. The second is the economic cost to China itself of coercing, in a world where its own prosperity is wired into the networks it might disrupt. The third is geopolitical backlash — the risk that punishing a target drives it into the arms of the United States or a balancing coalition. The decision rule that falls out is clean: China coerces when the need to demonstrate resolve is high and the economic cost to itself is low, and refrains when the cost is high and the reputational stakes are low. When backlash looms, it reaches for non-military tools — diplomatic freezes, economic coercion, gray-zone pressure — rather than the blunt instrument of force.

The implication runs against decades of realist intuition. A rising power is “supposed” to grow more aggressive as its capabilities swell. Zhang’s China does the opposite, substituting calibrated economic pressure for military risk precisely because it has more to lose from a war or a coalition forming against it.

The Tell Is in the Targets¶

The selectivity argument is sharpest in the cases. When China froze Norwegian salmon imports after the 2010 Nobel Peace Prize went to the dissident Liu Xiaobo, Norwegian salmon’s share of the Chinese market collapsed — but Beijing pointedly hit a politically visible, economically non-essential export while leaving the sectors it actually depended on untouched. When it retaliated against South Korea’s 2017 deployment of the American THAAD missile-defence system, it shuttered the retail chain Lotte, throttled tourism, and banned K-pop — again, consumer-facing, substitutable targets, not the semiconductor supply lines that bind the two economies. The 2010 rare-earth squeeze on Japan and the long campaign of pressure in the South China Sea fit the same pattern.

Zhang’s verdict is that Chinese sanctions are, by and large, symbolic — signalling devices rather than serious attempts to wreck an adversary’s economy, and chosen precisely so the cost falls on the target rather than on China. Her later work sharpens the point about how Beijing coerces: Chinese sanctions are typically vague and unannounced, executed rather than threatened, because ambiguity preserves plausible deniability and slips around World Trade Organization rules. Beijing announces a sanction openly only when it can dress it in a national-security exception — as with retaliation over American arms sales to Taiwan. It is coercion engineered to punish without quite admitting it is punishing.

The South China Sea Laboratory¶

Zhang’s theory was forged in the most-watched arena of Chinese assertiveness: the South China Sea. The popular image is of relentless Chinese aggression — island-building, coast-guard ramming, the steady salami-slicing of contested waters. Her finding complicates it. China, she showed, rarely employs outright military coercion even there, and it does not coerce all the rival claimants who pose similar challenges; it picks its moments and its targets. The instrument of choice is the gray zone — coast-guard and maritime-militia pressure, economic punishment, diplomatic freezes — calibrated to advance Beijing’s position while staying below the threshold that would trigger an American military response or weld the region into a balancing coalition.

That calibration is the whole point. A reflexive bully would escalate; Zhang’s calculating China modulates, precisely because it grasps that overt force in the South China Sea could achieve the one outcome it most wants to avoid — driving the Philippines, Vietnam, and others decisively into Washington’s arms. The 2012 episode in which Beijing quarantined Philippine bananas over a maritime standoff is the tell: punishment aimed at a substitutable export, signalling resolve while capping the cost and the backlash. Coercion as a controlled instrument, not a loss of temper.

The lesson Zhang draws is uncomfortable for both hawks and doves. The hawk’s claim that China is irrepressibly aggressive overstates Beijing’s appetite for risk; the dove’s hope that economic interdependence has tamed it underestimates Beijing’s willingness to use that same interdependence as a weapon. The truth is a third thing: a power that has learned to coerce efficiently, extracting the maximum signal for the minimum cost — which is, if anything, the more formidable adversary.

Influence¶

Zhang’s work is among the most cited correctives to the lazy assumption that China coerces reflexively or irrationally. By putting Beijing’s own economic vulnerability inside the security calculus, she explained two things at once: why China prefers economic and gray-zone tools, and why it uses force less as it grows stronger. That has made her a reference point in Western debates about sanctions, deterrence, and “de-risking” — because anticipating Chinese economic retaliation requires understanding that it is calculated, sector-specific, and bounded by China’s own dependencies. She is a recurring expert voice for CSIS, Brookings, and the national-security policy community.

The Critics¶

The serious pushback came in an International Security exchange in which Tongfi Kim and Andrew Taffer argued that Zhang’s research design does not cleanly establish her central claims, that she catalogues China’s reactions to provocations while saying less about cases where Beijing coerces proactively, and that the drift toward non-military tools might simply reflect that a stronger China finds economic coercion more effective — a capabilities story rather than a cost-balancing one. Reviewers in the book roundtables, while broadly admiring, have questioned whether costs and benefits are really as commensurable as the model assumes, whether decision-makers are quite so cleanly rational, and whether the theory needs testing beyond China to prove it is more than a description fitted to the Chinese cases.

These are the standard tensions of any rationalist account of a secretive state: the model’s elegance is also its vulnerability. But even the critics tend to accept the core empirical finding — that China coerces less, and more selectively, than the headlines suggest.

Why She Matters¶

Zhang replaced a caricature with a mechanism. The “reflexive bully” of popular commentary gave way to a calculating actor weighing resolve against cost — and that shift has real consequences, because a calculating adversary can be deterred and anticipated in ways a temperamental one cannot. As economic statecraft becomes the default instrument of great-power competition, her account of when and how Beijing reaches for the economic weapon is among the most practically useful things written about contemporary China.

Sources & Further Reading¶

• “China’s Gambit: The Calculus of Coercion” (Cambridge University Press, 2023) — the full statement of cost-balancing theory. (See Recommended Reading below.)

• “Cautious Bully: Reputation, Resolve, and Beijing’s Use of Coercion in the South China Sea,” International Security (2019) — the foundational article.

• “Just Do It: Explaining the Characteristics and Rationale of Chinese Economic Sanctions,” Texas National Security Review (2024) — on why Chinese sanctions are vague, unannounced, and deniable.

• “Chinese Non-Military Coercion: Tactics and Rationale,” Brookings — the clearest short account of the Norway and THAAD cases.

• Kim, Taffer & Zhang, “Correspondence: Is China a Cautious Bully?” International Security (2020) — the critique and Zhang’s reply, for balance.