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Macroeconomics

Dec 2, 2025

87

3 pages

Understanding Credit and Interest in Economics

Dive into the world of credit and borrowing with this practical guide. Understanding how credit works is essential... Show more

Credit and Interest
Credit- The ability to borrow money
Principal- A prime sum of money borrowed, excluding interest
Interest rate- A percen

Credit and Interest Basics

Ever wonder how borrowing money actually works? Credit is simply the ability to borrow money or get products based on your promise to pay later. When you borrow, you'll pay back the original amount (called the principal) plus extra charges.

The extra money you pay is called interest - essentially a fee for using someone else's money. Lenders charge interest to make lending worthwhile for them. This can be expressed as a percentage (interest rate) or as a specific dollar amount (finance charge).

Most loans are repaid in equal installments over time. The Annual Percentage Rate (APR) tells you the yearly interest cost when paying in installments. The total cost of your loan depends on three key factors the amount borrowed, the APR, and how long you take to repay it.

💡 Money-Saving Tip To reduce what you pay overall, always shop for the lowest APR and pay off your loans as quickly as possible!

There are two main types of consumer loans. Secured loans (like mortgages and car loans) are backed by collateral the lender can take if you don't pay. Unsecured loans (like paycheck loans) aren't backed by specific assets but typically have higher interest rates.

Credit and Interest
Credit- The ability to borrow money
Principal- A prime sum of money borrowed, excluding interest
Interest rate- A percen

Credit Cards Explained

Credit cards are basically portable loans in your pocket! When you use a credit card, you're borrowing money from a financial institution that has given you a credit limit - the maximum amount they'll let you borrow.

Here's how they work When you swipe your card, the bank pays the store for you, then sends you a bill later. You typically have 20-30 days to pay your balance in full without any extra charges. Miss that window? That's when the finance charges kick in!

Your monthly bill will show a minimum payment (determined by your bank), but be careful - a large part of this minimum is just interest! This means paying only the minimum keeps you in debt longer.

🚨 Watch Out! Studies show people spend 12-18% more when using credit cards versus cash because plastic doesn't "feel" like real money!

Credit cards have advantages - they offer interest-free short-term loans if you pay in full, provide quick access to goods in emergencies, and offer protection against fraudulent purchases. However, the disadvantages are serious high debt risk, claims on your future income, reduced financial options, and the tendency to overspend.

Using cash instead has its benefits no debt, less spending (due to the psychological "pain" of parting with physical money), and it encourages budgeting. The main downside is having to delay purchases until you have the money.

Credit and Interest
Credit- The ability to borrow money
Principal- A prime sum of money borrowed, excluding interest
Interest rate- A percen

Cash vs. Credit Final Thoughts

Cash continues to offer significant advantages including no annual fees unlike many credit cards. When you use physical money, you'll likely spend less overall due to the psychological impact of actually seeing your money leave your hands.

Using cash also creates a natural incentive to budget your money carefully, since you can only spend what you physically have. This helps develop stronger financial discipline over time.

However, cash does have drawbacks. The main disadvantage is that you might have to delay purchases until you have sufficient funds on hand. Additionally, unlike credit cards, cash offers no protection against loss if something happens to your purchase.

🔑 Key Insight The best approach might be a balanced one - using credit cards strategically for their benefits while maintaining cash for everyday spending to control impulse purchases.

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

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4.9/5

App Store

4.8/5

Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user

 

Macroeconomics

87

Dec 2, 2025

3 pages

Understanding Credit and Interest in Economics

Dive into the world of credit and borrowing with this practical guide. Understanding how credit works is essential for making smart financial decisions and avoiding debt traps that can affect your future.

Credit and Interest
Credit- The ability to borrow money
Principal- A prime sum of money borrowed, excluding interest
Interest rate- A percen

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Credit and Interest Basics

Ever wonder how borrowing money actually works? Credit is simply the ability to borrow money or get products based on your promise to pay later. When you borrow, you'll pay back the original amount (called the principal) plus extra charges.

The extra money you pay is called interest - essentially a fee for using someone else's money. Lenders charge interest to make lending worthwhile for them. This can be expressed as a percentage (interest rate) or as a specific dollar amount (finance charge).

Most loans are repaid in equal installments over time. The Annual Percentage Rate (APR) tells you the yearly interest cost when paying in installments. The total cost of your loan depends on three key factors: the amount borrowed, the APR, and how long you take to repay it.

💡 Money-Saving Tip: To reduce what you pay overall, always shop for the lowest APR and pay off your loans as quickly as possible!

There are two main types of consumer loans. Secured loans (like mortgages and car loans) are backed by collateral the lender can take if you don't pay. Unsecured loans (like paycheck loans) aren't backed by specific assets but typically have higher interest rates.

Credit and Interest
Credit- The ability to borrow money
Principal- A prime sum of money borrowed, excluding interest
Interest rate- A percen

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Credit Cards Explained

Credit cards are basically portable loans in your pocket! When you use a credit card, you're borrowing money from a financial institution that has given you a credit limit - the maximum amount they'll let you borrow.

Here's how they work: When you swipe your card, the bank pays the store for you, then sends you a bill later. You typically have 20-30 days to pay your balance in full without any extra charges. Miss that window? That's when the finance charges kick in!

Your monthly bill will show a minimum payment (determined by your bank), but be careful - a large part of this minimum is just interest! This means paying only the minimum keeps you in debt longer.

🚨 Watch Out! Studies show people spend 12-18% more when using credit cards versus cash because plastic doesn't "feel" like real money!

Credit cards have advantages - they offer interest-free short-term loans if you pay in full, provide quick access to goods in emergencies, and offer protection against fraudulent purchases. However, the disadvantages are serious: high debt risk, claims on your future income, reduced financial options, and the tendency to overspend.

Using cash instead has its benefits: no debt, less spending (due to the psychological "pain" of parting with physical money), and it encourages budgeting. The main downside is having to delay purchases until you have the money.

Credit and Interest
Credit- The ability to borrow money
Principal- A prime sum of money borrowed, excluding interest
Interest rate- A percen

Sign up to see the contentIt's free!

Access to all documents

Improve your grades

Join milions of students

By signing up you accept Terms of Service and Privacy Policy

Cash vs. Credit: Final Thoughts

Cash continues to offer significant advantages including no annual fees unlike many credit cards. When you use physical money, you'll likely spend less overall due to the psychological impact of actually seeing your money leave your hands.

Using cash also creates a natural incentive to budget your money carefully, since you can only spend what you physically have. This helps develop stronger financial discipline over time.

However, cash does have drawbacks. The main disadvantage is that you might have to delay purchases until you have sufficient funds on hand. Additionally, unlike credit cards, cash offers no protection against loss if something happens to your purchase.

🔑 Key Insight: The best approach might be a balanced one - using credit cards strategically for their benefits while maintaining cash for everyday spending to control impulse purchases.

We thought you’d never ask...

What is the Knowunity AI companion?

Our AI companion is specifically built for the needs of students. Based on the millions of content pieces we have on the platform we can provide truly meaningful and relevant answers to students. But its not only about answers, the companion is even more about guiding students through their daily learning challenges, with personalised study plans, quizzes or content pieces in the chat and 100% personalisation based on the students skills and developments.

Where can I download the Knowunity app?

You can download the app in the Google Play Store and in the Apple App Store.

Is Knowunity really free of charge?

That's right! Enjoy free access to study content, connect with fellow students, and get instant help – all at your fingertips.

9

Smart Tools NEW

Transform this note into: ✓ 50+ Practice Questions ✓ Interactive Flashcards ✓ Full Mock Exam ✓ Essay Outlines

Mock Exam
Quiz
Flashcards
Essay

Can't find what you're looking for? Explore other subjects.

Students love us — and so will you.

4.9/5

App Store

4.8/5

Google Play

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user

The app is very easy to use and well designed. I have found everything I was looking for so far and have been able to learn a lot from the presentations! I will definitely use the app for a class assignment! And of course it also helps a lot as an inspiration.

Stefan S

iOS user

This app is really great. There are so many study notes and help [...]. My problem subject is French, for example, and the app has so many options for help. Thanks to this app, I have improved my French. I would recommend it to anyone.

Samantha Klich

Android user

Wow, I am really amazed. I just tried the app because I've seen it advertised many times and was absolutely stunned. This app is THE HELP you want for school and above all, it offers so many things, such as workouts and fact sheets, which have been VERY helpful to me personally.

Anna

iOS user

I think it’s very much worth it and you’ll end up using it a lot once you get the hang of it and even after looking at others notes you can still ask your Artificial intelligence buddy the question and ask to simplify it if you still don’t get it!!! In the end I think it’s worth it 😊👍 ⚠️Also DID I MENTION ITS FREEE YOU DON’T HAVE TO PAY FOR ANYTHING AND STILL GET YOUR GRADES IN PERFECTLY❗️❗️⚠️

Thomas R

iOS user

Knowunity is the BEST app I’ve used in a minute. This is not an ai review or anything this is genuinely coming from a 7th grade student (I know 2011 im young) but dude this app is a 10/10 i have maintained a 3.8 gpa and have plenty of time for gaming. I love it and my mom is just happy I got good grades

Brad T

Android user

Not only did it help me find the answer but it also showed me alternative ways to solve it. I was horrible in math and science but now I have an a in both subjects. Thanks for the help🤍🤍

David K

iOS user

The app's just great! All I have to do is enter the topic in the search bar and I get the response real fast. I don't have to watch 10 YouTube videos to understand something, so I'm saving my time. Highly recommended!

Sudenaz Ocak

Android user

In school I was really bad at maths but thanks to the app, I am doing better now. I am so grateful that you made the app.

Greenlight Bonnie

Android user

I found this app a couple years ago and it has only gotten better since then. I really love it because it can help with written questions and photo questions. Also, it can find study guides that other people have made as well as flashcard sets and practice tests. The free version is also amazing for students who might not be able to afford it. Would 100% recommend

Aubrey

iOS user

Best app if you're in Highschool or Junior high. I have been using this app for 2 school years and it's the best, it's good if you don't have anyone to help you with school work.😋🩷🎀

Marco B

iOS user

THE QUIZES AND FLASHCARDS ARE SO USEFUL AND I LOVE THE SCHOOLGPT. IT ALSO IS LITREALLY LIKE CHATGPT BUT SMARTER!! HELPED ME WITH MY MASCARA PROBLEMS TOO!! AS WELL AS MY REAL SUBJECTS ! DUHHH 😍😁😲🤑💗✨🎀😮

Elisha

iOS user

This app is phenomenal down to the correct info and the various topics you can study! I greatly recommend it for people who struggle with procrastination and those who need homework help. It has been perfectly accurate for world 1 history as far as I’ve seen! Geometry too!

Paul T

iOS user