Gold has surged to historic highs, fueling a new boom in Western Australia’s goldfields. Giants like Northern Star and Evolution are cashing in on $5,000-an-ounce prices, but investors haven’t forgotten past cycles where miners overspent and underdelivered. This time, companies promise discipline — share buybacks, dividends, and cautious expansion — even as rising costs and global uncertainty put pressure on the industry. Bloomberg's Paul Allen reports for "Wall Street Week."

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