Gambling can be thought of as risking a stake on, for instance, the result of a game of chance or sport in the hope of a bigger payout. While often the result is purely down to chance, in some cases a strategy or an element of research (for instance of a horse or football team’s form) can be used. Investment, in contrast, tends to involve purported economic utility and assets believed to have some sort of underlying value, and holds the hope of future profit (although there are also plenty of bad investments or those that have gone to zero). While an investor must be prepared to lose their entire stake, in some cases such an event is relatively unlikely (for instance, if they buy a fund tracking the performance of a major stock exchange). Speculation is harder to define, but is generally seen as shorter term than investment, with more chance of a bigger gain or loss, and dependent on price fluctuations. Rightly or wrongly, the term has a more negative connotation than investment. 

One writer who explored the ethics of these activities was Oswald von Nell-Breuning, a Jesuit theologian and economist who served as an adviser to the Pope and who was banned from publishing under the Nazis. 

While he found that “one general definition cannot capture all the nuances” of speculation, he identified two different types of speculative activity - one that was purely trying to make a profit from financial market trading, and one based on trying to create a viable business. (See this article in the Catholic Social Science Review for a fuller explanation of Nell-Breuning’s views on speculation). 

As the CSSR article shows, Nell-Breuning found that there can be positive effects from speculation - one might think of better liquidity and price discovery in a market, while, in commodity futures markets, speculators allow producers to hedge risk. 

But he also argued that there can be negative effects, for instance if the actions of speculators force businesses in the real economy to change their plans or divert time and resources away from production. 

And whereas gambling typically takes place within a circle of players who have chosen to take part, speculation, he wrote, can affect a greater portion of society - for instance, if it affects the price of shares or bonds they hold. 

The Bible - on which Nell-Breuning’s faith and analysis was based - does not take a prescriptive approach to such activities. But it does provide some interesting guidance.  

An entrepreneurial approach to business and investment is applauded, for instance when the writer of the book of Proverbs (traditionally believed to be King Solomon) praises the virtues of “an excellent wife”. These include investing in a field and using her earnings from business to plant a vineyard, and feeding her family from her gains. 

Jesus tells a story of a master who, before going on a journey, gives his property to his servants, each according to their ability. To one he gives five “talents” (a large unit of money), to a second two and to a third servant he gives one. 

The first servant trades with his talents and makes five more talents - a 100 per cent profit - and is applauded by the master on his return. The second servant also trades and similarly makes two more talents and is again applauded. 

But the third servant, being afraid and believing the master to be “a hard man”, hides the money in a hole in the ground. He is condemned as “wicked and slothful”, and told that he should at least have put the money in the bank. 

While Jesus’s story may primarily be about how we view God’s nature, how we use our God-given abilities and whether or not we can take risks in faith for Him, it is also hard not to see investment and indeed wise speculation as being virtuous activities here. Putting the money into a bank account is, in this story anyway, more of a fallback option. 

But the Bible also warns us against putting money above all else in our lives. The love of money is, famously, a root of all sorts of evil, while we are also told to be content with what we have, and that “wealth gained hastily will dwindle”. 

Nell-Breuning similarly warns that a “get-rich-quick” mindset, when this is placed above all else, can be harmful, and advises caution in situations where the lure of big profits can lead the speculator into market manipulation or fraud. 

After all, both gambling and crypto trading have the potential to become dangerous and damaging addictions needing treatment. 

Ultimately, Nell-Breuning struggled to come to a simple conclusion on the question of whether speculation, in and of itself, is morally wrong. It is, he wrote, a judgment call for those involved. 

When making such decisions ourselves, his - and the Bible’s - warnings may be worth bearing in mind.