Spreadsheet Models for Managers: A Hyperbook

Tedium, Boredom, Skip to the Details:
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Wasted Time, Wasted Work, Errors, Recalls, Data Re-entry, Data Re-Re-Entry. The lives of spreadsheet modelers and the lives of the modelers' customers aren't pretty. The tragedy is that most of the pain, waste, and missed deadlines are so unnecessary.

Spreadsheets are wonderful tools. They help us track what is, they help us figure out what was, and they help us predict what will be. Despite the popularity of spreadsheets, despite their wide use, and despite our familiarity with them, most of us receive only a fraction of the benefit we could derive from our work with spreadsheets.

Spreadsheet Models for ManagersThis Hyperbook — a stand-alone Web site you read with your Web browser — is packed with tips, techniques, and dozens of worked examples that show you:

  • How to manage spreadsheet development projects
  • How to build high-reliability and low-maintenance models of businesses and business processes using spreadsheets
  • How to exploit sophisticated mathematical techniques to reduce modeling errors and maintenance problems.

The overall philosophy is that you shouldn't need a Ph.D. to create a high-value business model that lets you predict the performance of a business process. A simple spreadsheet model is probably good enough for most business purposes, given the rapid pace of change in today's markets. But when you do make a model, it should be easy to understand and maintain, and it should be right.

This hyperbook is based on a course called Spreadsheet Models for Managers, which I began developing at the Harvard Extension School in 1993, and which I taught there until 2014. At Harvard, and wherever I've taught the course, I've had the benefit of questions, praise, complaints, wishes and criticism from hundreds of students.

This is a course about using spreadsheets to model businesses and business processes, from the perspective of a manager. It emphasizes both the modeling techniques, and the process of modeling itself. That is, we're not only interested in building models that managers need, but we want to build them in ways that are easily managed, and that give reliable and cost-effective results.

In the form of a stand-alone Web site, it includes dozens of worked examples and homework problems, with solutions. Not just descriptions of solutions (though we include that, too) — actual Excel workbooks. Moreover, the solutions are far more than just answers. They come complete with narrative explanations that discuss alternatives and tradeoffs of different approaches. And when more than one approach is possible and instructive, the solution includes both.

Here's a sampling of topics:

  • Accumulations and derivations: running sums, running differences
  • Relative and absolute references: what the heck are they good for?
  • Operations on references: unions, intersections, and compound ranges
  • Named parameters, parameter blocks: save time and reduce maintenance costs
  • Drilling down and rolling up: tools for doing either one effectively
  • Array formulas: manipulate whole ranges, not single cells
  • Matrix multiplication: do in one row what others do in twenty
  • Safety margins and crowding: save money by managing your resources
  • Circular reference headaches: how to resolve them
  • Convolution: simplify calculations involving time variation
  • Use convolution for multiple lease events
  • Terminology, styles, tips for effective charts
  • Using charts to catch errors in models
  • Key practices for organizations that use spreadsheet technology on an enterprise scale
  • Formal technical reviews of spreadsheets: reduce errors and educate your team
  • Writing macros using Visual Basic for Applications
  • Inventory modeling: Economic Order Quantity (EOQ)
  • Purchasing decisions in the context of volume discounting
  • Modeling waiting lines
  • The Fast Food Drive-Thru: How long should the driveway be?

Two formats

This course is available in two formats. All of them include worked examples and demonstrations, and all have a search capability to help you find exactly what you're looking for.

On line
It's available at this Web site, for those who have good access to the Internet and want to have the benefit of the continuous improvements I'm constantly making to the course.
Downloadable hyperbook
Or order it as a downloadable zip archive. It's only about 16.6 MBytes compressed (expands to 57 MBytes).

Details

Order on line using your credit card, or send a check payable to Chaco Canyon Consulting to the address below. Call for volume or site license pricing at the phone number below. There are three ways to go:

On line edition, one-month subscription for USD 69.95:

Order Spreadsheet Models for Managers, on-line edition, one month by credit card, for each, using our secure server, and receive download instructions by return email.
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On line edition, three-month subscription for USD 199.00:

Order Spreadsheet Models for Managers, on-line edition, three months by credit card, for each, using our secure server, and receive download instructions by return email.
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Downloadable hyperbook edition for USD 199.00:

Order Spreadsheet Models for Managers, downloadable hyperbook Edition by credit card, for each, using our secure server, and receive download instructions by return email.
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