Final answer:
The answer cannot be determined based on the given information.
Step-by-step explanation:
The question is asking what Dagny Taggart has just purchased and taken out a loan for. Based on the given information, there is no specific answer provided. The provided reference materials do not mention Dagny Taggart or any details about a home purchase or loan. Therefore, without additional context or information, it is not possible to determine what Dagny Taggart has just purchased and taken out a loan for.