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ABRAMS VALUATION GROUP, INC. ADVANCES VALUATION THEORY AND PUTS THAT THEORY TO WORK FOR YOU
Jay B.
Abrams, ASA, CPA, MBA, founder and leader of AVGI, wrote the most
advanced, quantitative book on the market about the valuation of
private business. The book, Quantitative Business Valuation: A
Mathematical Approach For Today's Professionals, was published in
2001 by McGraw-Hill.
Following is a list of models, formulas, and other significant
discoveries that appear in the book:
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- Invention of the Log
Size Model for calculating discount rates, including use of Newton's
Method of Iterations for automatic calculation. The model quantifies the
relationship of stock market returns with the logarithm of firm
size.
- First calculation of 95% confidence intervals around the valuation estimate
- Formulas to measure the impact of valuation errors in absolute and percentage terms for errors
in forecasting cash flows, discount rates, and growth rates for large
firms and small firms. This leads to the conclusions that errors in
forecasting discount rates and growth cause much larger valuation errors
than errors in forecasting initial cash flow. Additionally, the
valuation impact of those errors are greater in percentage terms for
large firms than for small firms.
- Demonstration of the empirical superiority of using the arithmetic mean over the geometric
mean
- Invention of models for calculating the Discount For Lack of Marketability
- Economic Components Model. As part of this model, Abrams developed the complex present value
formulas for periodic transactions cost differentials for both the buyer
and seller. Abrams also developed an empirical relationship between
transactions costs and the logarithm of firm size.
- Multiple Regression Equation for calculating restricted stock discounts
- Multiple Regression Equation for calculating secondary limited partnership market fractional
interest discounts
- Model for calculating control premiums based on voting rights premia, having demonstrated that
the traditional acquisition premiums are for synergies, not control.
- Several Annuity Discount Factors (ADFs) for valuing finite cash flows with growth, with or without stub periods. Also, proof that the ADF is the difference of two Gordon model multiples, while the Gordon model multiple is an ADF where n, the number of years, goes to infinity. Also, ADF for monthly cash flows, both mid-month and end-of-month. Developed the formula for the profession for the ratio of present values of monthly and daily cash flows compared to midyear annual cash flows, demonstrating that the latter is only 0.2% lower than the former for most business valuations, thus proving that annual cash flows are more than sufficiently accurate for business valuations.
- Periodic Perpetuity Factor (PPF). This formula and technique greatly simplifies valuations
where large periodic expenditures make a traditional 5 or 10 year
forecast inadequate. For example, in manufacturing replacing buildings
and extremely expensive equipment may occur every 20 to 50 years, and
ignoring these capital replacements can lead to disastrous errors in the
valuation, while attempting to model them was too cumbersome.
Additionally, the PPF is the only accurate method to make new-vs.-used
decisions in buying extremely expensive capital equipment, e.g., ships,
airplanes, CT scans, MRIs, fleets of trucks and taxicabs, etc.
- Formulas to quantify the net present value
of interest and principal in loans, including formulas for the
present value of the principal when the discount rate and nominal
rates are different.
- Iterative methodology to find and enforce
consistency in the underlying assumptions (the implicit values of debt
and equity) and the valuation results using the Capital Asset Pricing
Model (CAPM) for both Direct Equity and Invested Capital Approach.
- Decision tree model for valuing startup firms.
- Valuation formulas for both the firm and
the ESOP, both pre- and post-transaction, as well as formulas for
the dilution in value after sale to the ESOP. Also developed
formula for sharing the dilution between the owner/seller and the
ESOP to provide the financial engineering to enable the client to
achieve his or her desired results, given the pre-transaction
valuation.
- Algebraic derivation of the cash flow
statement and the definition of free cash flow for valuation
purposes.
- First empirical test of an entire
valuation theory, reconciling the models developed with public
company data to sales of small private firms in the transactional
database of the Institute of Business Appraisers.
- Exponential sales decay
model for forecasting sales
The following formulas and inventions do not appear in the book but are significant discoveries:
- A mathematical solution to pinpoint the source
of an accounting transposition error, which is the solution to a
500-year-old problem.* Developed a spreadsheet to provide the solution
automatically.
- A mathematical expression of the present value
of cash flows of a hybrid corporation that begins as an S corporation
and switches to a C corporation. Also calculated the first and second
partial derivatives that explain Duffy and Johnson's** results from
computer modeling.
At Abrams Valuation Group, Inc., we have a passion for excellence. As cutting-edge
leaders in the field, we have the ability to provide custom analysis
and insight that is difficult to find elsewhere. Our credo, "Uniquely Applying Original Valuation Theory," guides
our very existence. Life is more complex than books. One who can
recognize the differences between a client's factual situation and
the assumptions of a standard model, and who has the ability to develop
new models can most effectively serve his clients.
* "How to Quickly Find & Fix Transposition Errors," by Jay B. Abrams, The Practical Accountant, June 1992, p. 76.
** "Valuation of S Corporations Revisited: The Impact of the Life of an "S" Election Under Varying Growth and Discount Rates," by Robert E. Duffy and George L. Johnson, Business Valuation Review, December 1993, p. 155.
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