Publication of a policy document is not market news; the decision was priced earlier
Band: 95% interval across events.
Data table
| Basket | Assets | Events | Mean CAR[0,+2] | t | Placebo p | Mean |CAR| | Placebo |CAR| |
|---|---|---|---|---|---|---|---|
| EV makers & EV ETF | NIO, XPEV, LI, KARS | 88 | +0.03% | 0.079 | 0.94 | 2.76% | 3.12% |
| Solar & polysilicon | JKS, DQ, CSIQ, KGRN | 15 | -0.47% | -0.262 | 0.738 | 4.36% | 3.31% |
| China consumer discretionary | CHIQ | 23 | -0.48% | -1.578 | 0.043 | 1.17% | 1.00% |
How we know
Market model on MSCI China (MCHI), estimated over trading days −250 to −21; events one per five trading days; US-listed assets only (no Chinese hosts used).
- US listings trade after Beijing hours, so day 0 includes the full news day.
- A null on average does not exclude large single-event moves: the biggest were MIIT catalogue releases.