World leaders are delighted with the discovery and the roll-out of vaccines against COVID-19. Whilst it is still early days yet for the inoculation programmes, eventually, many people around the world should be able to fight off, and eventually put this awful pandemic behind us. But that got me thinking. Will the eradication of the deadly pathogen be a good thing or a bad thing for the stock market? Intuitively, we might conclude that it would be good for shares. After all, the world will gradually be able to recover its lost economic output. People will be able to go back to work. Companies will be able to pick themselves up, dust themselves down and hopefully resume service as normal. That is what is meant by an economic recovery. But would that necessarily translate to more gains for the stock market? I am not so sure about that. Market dilemma...