Macroeconomics - Nominal vs. Real GDP, and the GDP Deflator

The main difference between nominal and real values is that real values are adjusted for inflation, while nominal values are not. As a result, nominal GDP will often appear higher than real GDP.

Nominal values of GDP (or other income measures) from different time periods can differ due to changes in quantities of goods and services and/or changes in general price levels. As a result, taking price levels (or inflation) into account is necessary when determining if we are really better or worse off when making comparisons between different time periods. Values for real GDP are adjusted for differences in prices levels, while figures for nominal GDP are not.

The GDP Deflator
The GDP deflator is an economic metric that converts output measured at current prices into constant-dollar GDP. This includes prices for business and government goods and services, as well as those purchased by consumers. This calculation shows how much a change in the base year's GDP relies upon changes in the price level.

If we wish to analyze the impact of price changes throughout an economy, then the GDP deflator is the preferred price index. This is because it does not focus on a fixed basket of goods and services and automatically reflects changes in consumption patterns and/or the introduction of new goods and services.

Real GDP for a given year, in relation to a "base" year, is computed by multiplying the nominal GDP for a given year by the ratio of the GDP price deflator in the base year to the GDP price deflator for the given year.

Example:
Suppose we wish to calculate the real GDP for the year 2001 in terms of 1996 dollars. The value for (note that these values are for illustration purposes only) 1996 price deflator is 100 and the 2001 price deflator is 115. The 2001 GDP in nominal terms is $10 trillion dollars.

Then: Real GDP year 2001 in 1996 dollars =$10 trillion × (100 / 115) = $8.6 trillion

Limitations of GDP and Alternative Measures
Related Articles
  1. Career Education & Resources

    How Hard are the CFA Exams?

    Learn about the difficulty of the CFA exams with a description of the tests, some statistics on pass rates and suggestions that can help you pass the exams.
  2. Professionals

    What it Takes to be a Financial Analyst

    A financial analyst researches companies and economic conditions to make business, sector and industry recommendations.
  3. Career Education & Resources

    Financial Analyst: Career Path & Qualifications

    Read about what it takes to become a financial analyst in a corporation or securities firm, and learn how far you can rise in the profession.
  4. Career Education & Resources

    Financial Planner: Career Path & Qualifications

    Learn what education and certifications you need to become a financial planner, as well as the future prospects and earnings potential for financial planners.
  5. Career Education & Resources

    Where to Find Non-Profit Finance Jobs

    The non-profit sector offers a stable selection of jobs for those who seek other types of fulfillment from their jobs than just purely financial.
  6. Career Education & Resources

    Portfolio Manager: Career Path & Qualifications

    Learn about the basic requirements for getting hired as a portfolio manager, and discover how most professionals in the field rise into the position.
  7. Your Practice

    4 Professional Associations Advisors Should Join

    These four professional organizations are among the most respected and well known in the industry.
  8. Professionals

    Equity Research: Career Path and Qualifications

    Find out what equity research analysts do on a day-to-day basis, and learn more about the typical career progression for these securities professionals.
  9. Professionals

    What's on the CFA Level II Exam?

    The Chartered Financial Analyst Level II exam is the second of three tests that CFA candidates must pass.
  10. Professionals

    Financial Data Analyst: Career Path & Qualifications

    Learn more about the career options available to financial data analysts, and determine whether the profession is a good match for you.
RELATED TERMS
  1. Personal Financial Advisor

    Professionals who help individuals manage their finances by providing ...
  2. CFA Institute

    Formerly known as the Association for Investment Management and ...
  3. Security Analyst

    A financial professional who studies various industries and companies, ...
  4. Chartered Financial Analyst - CFA

    A professional designation given by the CFA Institute (formerly ...
RELATED FAQS
  1. What are the differences between a Chartered Financial Analyst (CFA) and a Certified ...

    The differences between a Chartered Financial Analyst (CFA) and a Certified Financial Planner (CFP) are many, but comes down ... Read Full Answer >>
  2. How do I become a Chartered Financial Analyst (CFA)?

    According to the CFA Institute, a person who holds a CFA charter is not a chartered financial analyst. The CFA Institute ... Read Full Answer >>
  3. What types of positions might a Chartered Financial Analyst (CFA) hold?

    The types of positions that a Chartered Financial Analyst (CFA) is likely to hold include any position that deals with large ... Read Full Answer >>
  4. Who benefits the most from prepaid expenses?

    Prepaid expenses benefit both businesses and individuals. Prepaid expenses are the types of expenses that are bought or paid ... Read Full Answer >>
  5. If I am looking to get an Investment Banking job. What education do employers prefer? ...

    If you are looking specifically for an investment banking position, an MBA may be marginally preferable over the CFA. The ... Read Full Answer >>
  6. Can I still pass the CFA Level I if I do poorly in the ethics section?

    You may still pass the Chartered Financial Analysis (CFA) Level I even if you fare poorly in the ethics section, but don't ... Read Full Answer >>
Hot Definitions
  1. Presidential Election Cycle (Theory)

    A theory developed by Yale Hirsch that states that U.S. stock markets are weakest in the year following the election of a ...
  2. Super Bowl Indicator

    An indicator based on the belief that a Super Bowl win for a team from the old AFL (AFC division) foretells a decline in ...
  3. Flight To Quality

    The action of investors moving their capital away from riskier investments to the safest possible investment vehicles. This ...
  4. Discouraged Worker

    A person who is eligible for employment and is able to work, but is currently unemployed and has not attempted to find employment ...
  5. Ponzimonium

    After Bernard Madoff's $65 billion Ponzi scheme was revealed, many new (smaller-scale) Ponzi schemers became exposed. Ponzimonium ...
  6. Quarterly Earnings Report

    A quarterly filing made by public companies to report their performance. Included in earnings reports are items such as net ...
Trading Center