Is investing in gold during an economic crisis a wise decision?

Like all investments, if you're timing the purchase of gold then I wouldn't recommend it.

Gold and other Commodities should already be part of your everyday asset allocation.

But the idea of gold is that it provides negative correlation to USD. And while common, it is not always that when markets don't do too well, USD also drops.

Critics say that you receive no dividends and incur fees for storing and safety, true.

as i feel that bonds are not anymore a really safe haven, i think that part if one's portfolio (5-10 %) could be invested into physical gold (for a crisis possibly small units for change would be more appropiate, however have higher relative buying fees).

That said, I hold myself only about 1% as physical gold and critics also note that the gold price did not always go up, when the stock markets went down.

cannot be to bad to own some gold. for calculating the gold price net past performance one should define appropiate time intervals, as also inflation rates of your national currency and the USD.​​​