Answer :

To determine when a long-term purchase on a credit card is better than taking out a loan, we need to carefully evaluate several factors. Let's consider these factors step by step.

### 1. Interest Rates
One of the most crucial aspects to compare is the interest rate. Typically, credit cards have higher interest rates compared to loans. In this scenario, let's assume:

- Credit card interest rate: 18% annually
- Loan interest rate: 10% annually

### 2. Repayment Terms
Loans usually have fixed repayment terms, meaning you have to pay a certain amount each month for a specified period. Credit cards, on the other hand, offer more flexible repayment options, but if you only make minimum payments, you could end up paying more in interest over time.

### 3. Fees and Penalties
You should also consider any additional fees and penalties associated with either option. Credit cards might have late fees, over-the-limit fees, and annual fees, while loans could have origination fees and prepayment penalties.

### 4. Credit Utilization
Using a large portion of your credit card limit can negatively impact your credit score. Financial experts generally advise keeping your credit utilization below 30% of your total available credit.

### Example Calculation

Let's break down the example given:

- Principal Amount: [tex]$1,000 #### Total Repayment Cost for Credit Card - With an 18% annual interest rate: \[ \text{Total Repayment for Credit Card} = \$[/tex]1,000 \times (1 + 0.18) = \[tex]$1,180 \] #### Total Repayment Cost for Loan - With a 10% annual interest rate: \[ \text{Total Repayment for Loan} = \$[/tex]1,000 \times (1 + 0.10) = \[tex]$1,100 \] ### Comparison Comparing the total repayment amounts: - Total cost with a credit card: $[/tex]1,180
- Total cost with a loan: [tex]$1,100 In this example, the loan is clearly the better option as it results in a lower total repayment cost. ### Conclusion For this specific scenario: - Loan is the better option because it has a lower total repayment cost ($[/tex]1,100) compared to the credit card ($1,180).

General Guideline:
- A long-term purchase on a credit card might be better if:
- The credit card offers a lower or promotional interest rate.
- You can repay the balance quickly to avoid long-term interest accumulation.
- The loan has high fees or strict repayment terms that are difficult to meet.

However, in most cases where interest rates are significantly higher on credit cards (like in this example), taking out a loan is generally the better financial decision. Always consider your specific circumstances and possibly consult a financial advisor.

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