If I am planning to make a monthly donation of f.ex. 100 Euros, is it significantly more effective to donate to one organisation than choosing two organisations and supporting each with 50 Euros? Of course by choosing two organisations the overall administration effort is higher but maybe this difference is marginal if one considers that it is a monthly long-term donation?
And how high is the administrative effort if I am supporting a US-based organisation if I am not a US citizen? Is it more advisable to support a comparable organisation that is also based in my home country Germany and therefore probably receives German donations more frequently?
I am thankful for your opinions!