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Nice answer. Do you know the question?

Okay, I’m likely going for triple-word-score here, but I’d like to discuss what I call “Qualitative Feature Polarization” in terms of how to read data.  I’ve talked about this before in the specific case of how to rate a sushi restaurant, but I think the principles apply to any situation where people are asked to make a judgement/evaluation.

The problems with most evaluations are as follows:

  • ranking things in a straight good-to-bad list throws out too much information
  • all data points are contextual, but we rarely understand the context
  • the real question– and therefore the real answers– are often not present

That last point is perhaps the most important: many times we are asked to make an evaluation from data that is based on assumptions in the goals or undefined context in the business model.  For example: If Zappos were to match its prices against WalMart, it would “lose”, but in terms of service, it would “win”.  Conversely, wait times on the customer service line to Zappos are “much better” than when I call WalMart.  In an evaluation of customer service level, which one is correct?  It depends on the business model, and on the context.  In Vietnam, the US Army killed bad guys the enemy at a rate far more than our own casualty rate.  Wins used to be defined by simple body count, but we saw how that turned out.

The effficiency expert Pete Abila points out the Toyota quality method of “5 Whys” to try and find the real question (in hopes seting up an alanysis to find the real answer).  By simply asking the question “why?” at least 5 times, we can often get to the heart of the real problem, and strip away any assumptions or differences in the models we have put around the data results.

So, how to run an analysis that can provide sufficient context while also attempting to find the real issue? Whenever possible, I try to run all data in a method I call “Qualitative Feature Polarization”.  This method runs on some basic rules (which echo the problem points above):

  • Smash data sets together to see if any patterns arise (but remember your college statistics prof warnings about causality and correlation).  This is the serendipity part– the chance for an “a ha!” moment that might lead to a further inquiry or data set
  • Whenever possible, frame your data in left<–>right, blue<–>red, service<–>cost.  Applying such a framework to the Zappos vs. Walmart comparison would then lead you closer to the real issue: the business models are fundamentally different.
  • Whenever possible, highlight the specific areas that the results and evaluation have NOT answered yet.  In other words, show that the evaluation has uncovered some results, but that the reader/listener (your boss) should specifically NOT jump to some conclusions  (unless he has a mat) based on the data.  This isn’t because the data is incomplete, it’s because the data was investigated to look at a specific issue.  Thou shalt not extrapolate your summary.
  • Structure your analysis that leads you to a contextually-rich, polarized set of numbers.  These numbers should then guide the next choice of left or right, not good or bad.

Receptiveness to this analysis is a mixed bag.  If your audience is a fairly flat organization and the geeks are on equal footing, then qualitative feature polarization works well.  If the organization is fairly vertical, they likely just want “the answer.”  A good way to guage for this is the degree to which the org uses PowerPoint as a communications mainstay, and the level of complexity in the metaphors you spin out.

Commodities Market TradingGoogle is worth bazillions of dollars because they’ve created a commodities market: people bid a price on a keyword, and when someone clicks, that keyword bid is consumed, just like a barrel of oil, pork hind, or frozen concentrated orange juice.  The trick is that the core commodity here, marketing budgets, is pretty large and very renewable, and with constant upwared pressure on prices.

If we were to look at this system like a commodities market, would it be possible to create a derivatives market?  Could one short-sell keyword bids?  Could one create meta-bids on the value of a group of keywords?  One possible model might be to offer a time-limited, set price for clicks for a given keyword regardless of the current “market price” trading on that keyword position.

For example:

  1. Let’s call our derivative trading company “Keyword Derivatives, Inc”
  2. An online shoe company buys a contract from “Keyword Derivatives, Inc” for 100 clicks before the end of the week for “Chuck Taylor High Tops” at $1 each.  Total price of the contract: $100.
  3. Keyword Derivative traders in turn will bid to get position for “Chuck Taylor High Tops“.  Depending on demand, they may pay Google $.05 per click, they may end up paying $5 per click.  Keyword Derivatives is assuming that risk.
  4. Keyword Derivative traders must increase their bid amounts in order to fulfill the 100 clicks before the end of the week, while trying to maintain their profit margin by keeping bids under $1.  Keyword Derivatives may end up spending $50 to google, it may also end up spending $172, depending on its ability to optimize keyword placement and bidding strategy.

Many ecommerce companies try to manage their keyword budget as a certain percentage of sales.  Most companies who are buying keywords have a set price in mind for the cost of acquiring a customer.  The problem is that the bid structure of Google keywords is highly volatile and only trackable in hindsight  This makes keyword management very hard to manage and track for optimization.  There are many keyword management companies out there with predictive modeling to try and guess the optimal price for a given bid, but what if these companies were to go ahead and offer their own set price, and take care of the optimal bid themselves?  The keyword management software company could actually become a keyword brokerage.  They have the expertise, the software, and the ability to contract with their client to deliver the clicks.  The only missing part here is the in-house arbitration expert to figure out how much risk is in the keyword, and what price to charge the client for the guaranteed 100 clicks.

Hmmm… this might just work.  Does anyone know any quants looking for a job?

I am working on a project, and could use your help: how do you rate a sushi bar?  The simple “4 stars!” doesn’t really work, because I firmly believe that one cannot reduce a good sushi experience to a single dimension: the food, the preparer, the server, the atmosphere, the drinks– so many elements go into a dining experience, and even more so for something as ethereal as sushi nite. And, to be blunt, I am not sure most of the unwashed masses out there can judge good sushi from great sushi (not on the fish, at least).  Simply rating by 1-5 ’stars’ or whatever doesn’t work.
What goes into the decision on where to eat?  If you could rate a sushi bar on maybe 3-4 dimensions, what would they be?
So, here are my initial thoughts:

1. Atmopshere:

Traditional < ---------------> Modern

2. Menu:

Fresh Fish< ---------------->Nice Sauces

3. Service/chef:

Middle-aged Japanese Men< ------------------> Good Looking Young Hipsters

What else do you consider when choosing a sushi bar?  What would the different points of the dimension be?

© 2010 Dave Jenkins contact me via twitter @davejenk1ns or via email blog at davejenkins dot com Suffusion WordPress theme by Sayontan Sinha