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Discovering the legacy of Arthur Leared – doctor, inventor, traveller, writer
One day in early June this year, an email popped into my inbox, claiming to be from a medical historian in Ireland called Anne, who was writing a book on one Arthur Leared, inventor of the bi-aural stethoscope, and wondering if I was related. Indeed I was related, and curious and pleased that someone whom…
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Management by psychology, walkabout and stats
The management theorist Peter Drucker says “management is doing things right; leadership is doing the right things.” How then does management do things right? A management philosophy I learned during…
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Innscor 2023 full year results – well steered through a “Complex and Challenging” environment
Highlights In a welcome move, Innscor have changed their functional currency from ZWL to USD, and accordingly released a set of audited USD financial statements. The last full year in…
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Fewer losers, or more winners? Using tennis as an analogy to understand risk management and investing
Together with Buffett’s annual letter to shareholders, another investors writing I have really come to enjoy is Howard Mark’s memos, one of the founders of Oaktree Capital Management. The clarity…
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The rule of 72
The rule of 72 is a useful mental model, apparently created by Albert Einstein, which helps understand growth rates and compounding. Very simply, the rule states that if you divide…