@mattbrowne I think @Blackberry is right that the scandanavian countries score well because they are so homogenous, race, religion, and they tend to trust their government to care about their well being and keep them safe.
If I were to stereotype based on personal experience, I would also say that lies and promises can be different culture to culture. I think there is more mistrust in the countries where people are more likely to not hold to what they say they will do, or who will promise something they cannot fulfill. It is difficult for me to explain, but a girlfriend of mine just had one of these situations at work, she works with Latin American women from various countries, and they flat out lie sometimes, and the manager, also Hispanic, defends the other woman as not being a liar, I will try to think of the recent example, but I can’t right now. They do go against specific instructions of when to clock in, and some other things, but non-Hispanics do that too as we know, but it is a series of things that demonstrates to my friend and me how they must define lie differently than us.
When I was getting married my husband’s father said he was going to give us his villa/townhouse in FL. For me that was incredibly extravagant. In his circles people often bought new homes for their children when they married. My husband had been paying the mortgage and many bills, and they had stopped sending money for the bills, which was how it had originally worked. Remember it is his parents villa, and my husband has been living there for college, but he had graduated by the time we met and started working, so he actually could cover the bills, but it included the monthly payment for the BMW they had bought him as their gift to him, that had a big monthly payment for my husband to have to pay just graduating (to be clear they bought it for him, he was not supposed to have to pay anything) and also paying for some other expenses that my husband was not even getting use of. Anyway, his mom started saying how tight their money was, she wasn’t sure how they could give us the villa, and on and on. My reaction was, I don’t expect anything, why are they promising things they cannot begin to do? I think they wanted to be able to do it, so in their mind it is not a lie? They don’t have any malicious intent, they want to give us things with the purest of intentions. But, from my end, they said they would do something and they didn’t. There is more than just this example, it is a pattern. Because I know them, and know their intention, I can deal with it and it is ok. But, if I was dealing with them at arms length or as business partners or even as friends, I don’t think I would accept how they think about these things.
Anyway, my point is I do think cultural factors influence our trust level, and I don’t mean only one cultural classing with another culture, but also within certain cultures there can be a legitimate unwillingness to trust what someone says.
I’m sure I’ll get blasted for stereotyping. I should add my husband obviously is from the same culture as his family and he has incredible integrity and honesty and generally deals within his reality. I am just making some generalizations, it does not apply to every single individual of course.