When shopping, if you pay cash for a gift and write a check for a sweater, which demand for money is involved?

The concept of transaction demand for money relates specifically to the need for liquidity to facilitate everyday transactions. When you pay cash for a gift, you're using your money directly to settle that transaction, which indeed illustrates transaction demand.

However, when you opt to write a check for the sweater, you’re still engaging in a transaction, but the choice of payment method suggests a slightly different notion. Writing a check indicates that you're not using liquid cash but still ensuring that the transaction is completed. This act can also imply a level of precaution as you may be ensuring you have sufficient funds after purchasing to cover future needs or unexpected expenses. Therefore, the combination of paying cash for the gift (transaction demand) and using a check for the sweater indicates both immediate transactional needs and a precautionary desire to maintain a buffer of funds.

This insight highlights why the answer correctly identifies transaction demand for the gift while incorporating precautionary demand in regards to the check used for the sweater, as it demonstrates a broader understanding of money’s role in financial transactions.