PANIC method-RMA(recursive mean adjustment)

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Hi Tom,

I am studying on unemployment hysteresis

I want to use PANIC method( Bai and Ng,2004) to identify the common and idosyncratic components. Also, RMA for testing unit roots.

I cannot find any code for PANIC-RMA , on the forum or somewhere else.

I want to ask, which document should I look or article for RATS?

Thanks in advance