last names with two hyphens

[ch-K-iara]

when the last name has two hyphens, say Meyer-ter-Vehn, it gets automatically changed to Meyer-ter Vehn. I can't identify the line of code that does that.

[ShiroTakeda]

In BibTeX, the format.name$ function is used to format names. The disappearance of the second hyphen in the family name is due to the processing by this format.name$ function.

Since this behavior is caused by the format.name$ function in BibTeX, it cannot be addressed by econ.bst.

If it is not too much trouble, you can enclose the entire family name in {}, like this:

author = {Pukhov, A. and {Meyer-ter-Vehn}, J.}

This way, no modifications will be made by BibTeX to the content inside {}.