Am 07.04.2024 um 11:38 schrieb lars.ahnland(a)outlook.com:
Hi,
I know that wild bootstrap make tests robust to heteroscedasticity, and sometimes also to
serial correlation (block wild bootstrap and a dependent wild bootstrap). Is the
Small-sample Johansen coint. rank tests with wild bootstrap also robust to serial
correlation?
Hi Lars, co-author of the johansensmall package here. The simple answer
is: no, this is a "plain" wild bootstrap. The longer-term plan is to
re-use resampling code that allows also other variants. That more
general code partly lives in the "SVAR" addon and/or in the "extra"
addon. But this hasn't happened yet.
Apart from that, the best solution of course is to capture the serial
correlation in the VAR model itself. If this doesn't work (and I know it
often doesn't in practice), then I wouldn't be very confident about
healing the problem with a certain bootstrap variant, to be honest. But
I admit this depends on the context and application.
cheers
sven