It is the time of the year when commentators and analysts should think about revisiting the comments and analyses that they have proffered in the last 12 months. No one says that we should be right every time we put pen to paper. But we need to be held accountable for what we say. Investors should try and do likewise. We should look back at the transactions that we have made during the year, no matter how painful that might be. Only by reviewing our decisions can we hope to improve. In January, I looked at several snack makers. Little did I know at the time that Covid-19 would spread across the globe closing businesses and sending households into lockdown. But a couple of my favourite producers of nibbles have proved to be resilient. Winners and losers Hong Kong’s Vitasoy International (HKSE: 0345) only reported a 6 per cent dip in revenue for the first six months....