What a ridiculous question. Bull markets and bear markets can only be identified ex post facto. You can't make trading decisions on that basis.
A bear market is just a correction in a bull market until it's confirmed in retrospect. Similarly, you can short a sucker rally during a bear market only to find out to your horror that you were actually shorting the beginning of a bull market.
If anyone can honestly say they only short bear markets and never short bull markets, they're prodigiously rich and highly unlikely to be hanging out on this board.
As for myself, my answer isn't in your poll. I go both long and short, simultaneously, all the time. It's called statistical arbitrage.
Martin
