Why do companies ghost people?

The majority of the companies I've applied to this year are not even giving me an answer. Not even a rejection letter. I try to apply to internships, analyst positions, etc.

Am I such a poison that they can't even give me a screener? I have a Bachelor's in Economics and I'm currently pursuing a Master's in Economics/Data Analytics while working. Am I not a fit for these types of jobs? Am I not even fit for a chance at an internship?

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