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Taming the Inventory Tiger
June 1997
by Mike Shatzkin
The
part of the value chain we will focus on in this discussion is the money
end for consumer publishers, where the cash register rings: the final
steps in the supply chain that run from the publisher, sometimes through
a wholesaler, to a store shelf and, ultimately, to a final consumer purchaser.
For reasons that have very little, if anything, to do with technology,
this has been among the most volatile areas of the entire publishing landscape
in the 1990s in both the US and the UK. In the States, the 90s have been
characterized by the dramatic acceleration of a consolidation of accounts
that has been occurring since shopping center development spawned national
chains in the 1970s. Fueled by pools of investment capital not available
to smaller entrepreneurs, the mall-store chains Walden and B. Dalton have
morphed into superstore chains Borders and Barnes & Noble, retailers
that appear poised to carry every title a publisher puts out in hundreds,
if not thousands, of stores. And at the same time, mass merchandisers,
facilitated by wholesalers attentive to a powerful emerging market opportunity,
have brought the titles at the top of the sales pyramid to a wider audience
at lower prices.
This
has combined to drive many independent bookstores out of business. In
Britain, the trade has been roiled by a different turmoil: the end of
the net book agreement that effectively controlled retail prices. This
newly-enabled price competition for books has encouraged the UK version
of the US mass merchants, the "supermarkets", to expand into bookselling,
like their US counterparts, bringing the top titles in the pyramid to
a wider audience at lower prices. This is apparently also having a deleterious
affect on the British bookselling independents, who have lost important
chunks of their business. For
the publishers, particularly if they are not sentimental about whether
bookselling is highly personal or highly corporate, this would, at first
blush, appear to be only good news. Who wouldn't want to trade little
editors for big ones? Who wouldn't prefer to get an order for 1000 stores
in one place, rather than chasing around to 1000 different places? Who
wouldn't want to put the books with the biggest markets beyond the limited
venues where book lovers only may tread? And if the big retailers are
willing to work on slender margins to offer books at cheaper prices
to the public, why wouldn't the publishers love that? So,
why is it, if all this change is so good for consumer publishers, that
so many of them--it seems like all of them--are suffering
such dismal financial results? Why are reports of catastrophic returns
of unsold books becoming so commonplace? And how can returns be going
up at the same time that advance sales for new books, thanks to widespread
use of computers and a "just in time" inventory philosophy, are going
down? These
questions have a complex answer that can be very simply stated: the
inventory in the pipeline is out of control. That is, more than any
other player in the game, the publishers problem. And they can fix it:
with vendor-managed inventory. Vendor-managed
inventory is not necessarily a panacea. If it is done wrong, it doesn't
work. The history of the mass market paperback industry in the US demonstrates
that very clearly. It exploded with growth after World War II because
it employed vendor-managed inventory, on two levels. The publishers
just told the local IDs: here are the titles, here's what you need to
take. And the local IDs just put the books into the racks at locations
they controlled. No muss, no fuss, no presentation, no negotiation.
And, in the beginning, the money rolled in for everybody. But
over time, the system broke down. Publishers tried to jam more books
into the pipeline than the pipeline could hold. The IDs, more used to
a business of weekly and monthly magazines with predictable shelf lives
and pretty predictable sales, stumbled trying to cope with thousands
of different book titles that all had different marketing tracks. And,
in a fairly short time, this led to a complete breakdown of the system.
The larger locations that the IDs once controlled became targets for
the publishers to sell direct; the owner of the location felt it could
"afford" a buyer, particularly when the publisher offered much larger
discounts than the wholesaler did. So
vendor-managed inventory first created the mass market paperback business
and then, poorly administered, its disintegration destroyed it. It is
no accident that what we now think of as the mass market channel sells
much more expensive books; the higher unit cost is needed to support
a much more expensive stocking system. And even the rack-sized books
are, proportionately, much more expensive and close to hardcover prices
than they were forty or fifty, or even twenty, years ago. Making
the vendors manage the inventory was an important component in the growth
of Walmart, which Sam Walton made abundantly clear in his book. But
the challenge for Proctor & Gamble, dealing with soap suds and shampoo
and other items that sell repeatedly to the same customers, was not
nearly so great as what publishers will face. And Proctor & Gamble
had another advantage publishers don't have: the vendor asked them to
manage the inventory, they didn't have to sell the idea. Inventory
management for books, whoever does it, is vastly more complex than it
is for any other consumer product. Even superstore retailers in computers
or home supply might carry 5,000 different items, or SKUs in retailer
parlance. That number might cover the new releases a book retailer has to cope with over a couple of months. As for videos, Hollywood has made a total of something over 10,000 films in all of its history well under half, possibly a third, of the annual output of new consumer book titles. And there are a fraction of the number of recorded music releases as compared to books published. And
with the exception of a very small number of top sellers, the sales
in each outlet are spread over a large number of titles. If a bookstore
sells 10,000 individual books in a month, the sales will likely be spread
over more than 9,000 titles. And the same thing could be true the following
month, but 5,000 of the 9,000 titles could be different. So projecting
sales from one month to the next, based on any one stores data, is a
futile exercise. And,
of course, events influence sales on a title-by-title basis. Some of
the events, like publisher-sponsored author tours or advertising, are
themselves predictable, even if their effects are not. But many times
the sales-catalyst event itself is not predictable, or perhaps not even
detectable. A mention in a magazine, a tip in a newsletter, or take-up
of an idea by a celebrity or opinion leader can all cause a spurt of
sales in a book a store might have been selling modestly or not even
stocking at all. From
the store end, the inventory management problem is further complicated
by the sheer number of suppliers it generally employs. A superstore
will be stocking books from thousands of different publishers, each
with its own discount schedule, shipping location, speed of fulfillment,
and credit policies. So
the books go out one by one and damn near come in the same way. No matter
how much more efficient it would seem to move books around in 5s and
10s rather than in 1s and 2s, most of them won't actually sell that
way. The massive returns in our industry are at least partly the result
of a conspiracy of wishful thinking: both publishers and retailers would
be much happier if books would move in 5s and 10s, but stocking them
that way does not make it so. That approach might be made to work for
a small portion of the title universe: the top of the pyramid stocked
by the mass merchandisers or the relatively small number of titles
available in the early days of mass market paperbacks. And it might
work for direct response book clubs, who also work with the top titles
in the pyramid. But
for the TRADE, the whole trade, selling and stocking everything as if
it were all at the top of the pyramid wont work. If you want all the
sales, you have to stock all the titles that will sell. That fact is
what has driven the transition from mall stores with 25,000 titles to
superstores with 150,000. And, let's remember, those 25,000 title stores
were and are also characterized mostly by sales of ones and twos, not
fives and tens. Lets
spend a few moments considering the economics of a bookstore operation.
Bookstores convert money into books when they buy them and convert the
books back into money when they sell them. At the end of a year, their
profit is based on two things: how much they manage to make on each
book they sell and how many books they sell. In semi-technical terms.
we'd say that their total gross margin is the product of their average
margin, determined by the discount they buy at, times their stock turn,
or the number of times they re-use their inventory investment over the
year. Most
bookstore costs are relatively fixed. Rent may have a variable sales
component, but most of their other costs in staff, systems, and hardware,
remain pretty much the same regardless of sales volume. That means
that most of any increment in margin will drop straight to the bottom
line. If
you look a little more carefully at the gross margin equation, you will
see that the product comes from multiplying what will certainly be a
fraction, the margin on each sale, by what should certainly be an integer,
the annual stock turn. That tells us that the stock turn is by far the
more powerful component of the result. Indeed, calculations available
on our Idealog.com Web site demonstrate that at normal discount levels,
it would take eight additional points of discount to equal the margin
and profit impact of one additional turn of the stock. Check
it out for yourself. Bookstores
and publishers have been doing battle over discount points for years.
For the publishers, giving up discount points is very significant economically.
But bookstores can increase their profits more quickly by improving
stock turn than they can squeezing discount points out of the publishers. The
other component of the economics of inventory management that affects
both the publishers and the booksellers is the cost of returns. Of course,
all returned books signal a wasted investment in inventory plus wasted
freight and processing charges in two directions, regardless of who
pays the shippers. And they too often represent books the publisher
could have avoided printing, if they aren't subsequently re-sold through
another outlet. In
fact, they are sometimes re-sold through the same outlet. Publisher's
customers frequently re-order titles they had once, sometimes very recently. It
happens that poor stock turn and high returns have the same root cause
: a buying decision that is overly aggressive and speculative in relation
to what turns out to be ultimate demand. The books sit there hurting
stock turn until the bullet is bitten and they are sent back. How
speculative a buying decision *needs* to be, of course, is related to
often you are willing to buy. If you buy once a year, you have to speculate
quite a bit. If you buy every day, you can compensate for under-buying
so quickly that the consequences are minimal. The
argument I want to make to you today is that our current buying-and-selling
system, which my father Leonard Shatzkin has dubbed "distribution by
negotiation", actually is responsible for the prevalence of unprofitable
buying decisions and that a vendor-managed inventory system could make
these decisions considerably more profitable for everybody. The
reasons for this are different in the independents than they are in
the chains. The
independent bookstore is totally subject to the bookstore economics
we described earlier. What they can stock is usually more a function
of available cash and credit than it is available shelf space. While
not every independent retailer may realize it, his prosperity depends
almost entirely on stock turn. But the independent has two handicaps
that make it much more difficult to select books at the individual store
level than it would be for the publisher. First
of all, even if a single store captures data on every book it sells
, it simply does not know enough to project sales meaningfully on most
titles. If 8,000 titles each sold one copy last month, of which 4,000
didn't sell a copy the month before, which ones do you re-order? The
sales evidence is so flimsy that some books that didn't sell any copies
are more worthy of reorder than some that did. Which
leads to the second point: even if the decisions you would make would
be good ones, how can a bookseller afford to spend the time to decide?
Discerning subtle differences in sales appeal among thousands of titles
that sell the same insignificant numbers of copies is a time-consuming
pro position, even if it were possible to do it accurately. The
clues that would actually permit distinguishing among those titles,
of course, are not revealed on the level of one single store. If your
store was the only one in the country that sold one particular book
but *everybody* had sold a copy of another book, that would make it
pretty clear which one should be re-stocked. That knowledge constitutes
the publishers' advantage, or the sales reps' advantage, or the wholesalers'
advantage, or the chain stores advantage in making these decisions.
It is the solo independent stores' albatross. It
is worth reflecting for a moment on how much money cash-starved independent
stores spend meticulously tracking information that can ultimately be
of little or no help in making good buying decisions. Only
some of the costs in the system are reflected by slow turn and high
returns. There are also substantial costs in lost sales which are easy
to visualize. When a store fails to re-order a book that is selling
everywhere, both the store and publisher lose sales and sales momentum
that may never be recovered. But,
having said that, we have some tall explaining to do. Because bookstore
chains, which do know something about how a book is moving across many
stores and which can spread their title reviewing costs over many stores,
actually achieve much poorer buying results than well do well-run independents.
How can that be? We
have been calculating stock turns for every store or sub-category of
a store for which we could get numbers for years and years. Many independents
achieve turns of 4 or 5 a year; almost all of them that stay in business
for any length of time turn their stock 3 times a year. Although chain
numbers are usually quite difficult to discern, we have consistently
calculated chain stock turns between 1 and 2 a year. Well-run independents
return 10% or 20% of the volume of their buys; chains generally return
30 % or 40% or more. As
a recent Wall Street Journal article was, I believe, the first to clearly
articulate, it is precisely because the business is increasingly shifting
from 10% returns customers to 40% returns customers that the economics
has suddenly become so much more difficult for publishers. This is a
shift that cant be made up for with increased volume. If the returns
continue at their historical levels for this segment, and they appear
to actually be rising, more business just makes matters worse. A
leading consumer publishing executive described this reality recently
when he said, in effect: "It used to be that our bestseller business
paid for everything else we do; now it is the other way around." Until
pretty recently, the difficulty of achieving efficient buying results
at the chain level could reasonably be attributed to the sheer clerical
and administrative burden of the task. Start multiplying tens, let alone
hundreds, of thousands of titles by hundreds, let alone thousands, of
stores, and you literally have tens, if not hundreds, of millions of
individual stock levels to track. That problem is made apparently manageable
by aggregating the data: the buyer first looks at how a title is doing
in the aggregate in order to decide whether to even look at how it is
doing store-by-store. Unfortunately,
aggregating leads to predictable buying errors that occur every day.
A buyer sees he's bought 4000 copies of a book for his chain, and in
the first week he has sold 240 copies. Not enough, perhaps, to be worthy
of a more detailed look. But lets say a couple of cities, perhaps places
that ran early reviews or where the author has stirred up some interest
nobody really knew about, have sold out. So
the next week sales go down to 150 copies. The buyer sees this book
as one which is "slowing down". It might be that it is actually "picking
up"; the two sold-out cities have been joined by a couple more. If the
book had been replaced in the cities in which it is selling, sales might
appear to be accelerating rather than declining. This
is a lesson in the dangers of over-interpreting from aggregated data
that will be familiar to any rep who has sold a major account. But
pleading too much information to digest is a poor response in the digital
information age. And while there are some obvious computerized fixes
to the problem we just considered that I don't think have been implemented
in any bookstore chains procedures, bad systems are not the only barrier
to efficient inventory management in the chains. Lets reconsider the
bookstores economic realities from the chains perspective. The
chains, particularly the biggest ones, see themselves in a market share
game. Because he is painfully aware that books that sell big numbers
are the slender minority of the titles they stock. the biggest nightmare
of any chain buyer is that a book takes off and they don't have enough
of it and can't get more quickly. This is even worse if the competition
does while they don't. And
while the individual retailers constraint on how many books it can stock
is usually available cash and credit, chains play that game by different
rules. Their cash is coming from Wall Street, which appears to respond
to the top line, sales and market share, more than to the bottom line.
And their sheer size makes it possible to stretch payment to the publishers. The
equation for a stores profitability has "dollars of inventory investment"
as a key component; we must remember that the investment only REALLY
passes from the publisher to the store when the store pays for the goods.
If a store pays its bills 150 days after it receives shipments, all
the books that sold in the first five months had a turn of infinity,
and the only investment the store need worry about is for the books
that take more than five months to sell. So
both the market share consciousness and the ability to pay more slowly
could diminish the chain stores sense of urgency about stock turn. There
is another differentiating factor working against the chains concern
about returns. Returns
cost stores money, as we discussed before. But if a store pays slowly
enough, that cost is limited to the actual cost of processing the books
and shipping them back. Inventory cost--which could also be viewed
as the opportunity cost of lost sales or lost interest--may be
cancelled out as a factor. And offsetting any returns cost for the chains
is their stake in the remainder business. The silver lining for retailers
that sell remainders is that the books they ship back to the publishers
today w ill return to them at remainder prices tomorrow. And because
of their size and merchandising ability, chains have the best opportunities
to profit from remainders. But
trying to figure out WHY stock turn is so bad and returns are so high
is speculation. What is not speculation is the fact that these are the
facts, they seem to be getting worse, and publishers must do something
about it. That
"something" is moving to vendor-managed inventory. This
is not the forum to discuss exactly how to build an inventory control
system from the publishers end, or, as we will discuss briefly in a
moment, from the wholesalers. There are a variety of ways to operate
such a system, but first a publisher needs to re-orient his thinking
to use any vendor-management opportunity correctly. That
begins with a clear understanding of what the objective of each titles
stock level is. For titles that are moving, it is to have sufficient
inventory to have the book in place, perhaps in various places around
the store, without running out of stock. How many copies that is clearly
depends on how fast the book is selling and what its display opportunities
are, of course. But
it also depends on how fast you'll spot movement and how quickly you
can replenish supply. It
is those last two points that change dramatically in a vendor-managed
situation. Being
able to spot movement quickly and inexpensively is the new opportunity
afforded by technology. A publisher receiving sales and inventory information
via EDI, could get it and analyze it as often as the store would agree
to transmit it, perhaps weekly or even daily. Before EDI, it was only
as often as a publishers rep could get around to count the books, seldom
as frequently as monthly. Of
course, publishers COULD get EDI data daily or weekly, or even hourly,
without converting it to use with a vendor-managed inventory situation.
They could just get it and analyze it and digest it. But this begs the
next question: how fast can you replenish supply? In a vendor-managed
situation, that is purely a logistics question. In today's world, it
is a sales and bureaucracy question. Taking data to a buyer, at BEST,
causes delay, even if the buyer acts quickly in the way the publisher
would want. Too often, it results in no action at all or even some other
wrong action. The
publishers *only* defense in today's world is universally employed:
try to sell in enough copies to compensate for the time it will take
to know you need more and to convince the buyer to order more. The problem
with that defense is that, when it succeeds, it puts more copies in
the retailer than even the publisher would think was prudent, if the
publisher were operating with the right to restock the title whenever
it was necessary. And
that, in a nutshell, is why vendor-managed inventory would increase
the frequency of ordering, which would in turn, almost inevitably, increase
stock turn and reduce returns. Let
me enumerate what I think are the key steps for any publisher seeking
the vendor-managed inventory solution to the inventory problems that
are plaguing consumer publishers. The
first step is to become more conversant than most publishers are with
bookstore economics, so the relative impact of turnover improvements
and discount changes are well understood. This is necessary to even
speak the language of vendor-managed inventory properly. When you are
negotiating for an overall inventory level based on overall performance,
rather than for 10 copies of a forthcoming book instead of 5, your sales
pitch will be rooted in historical numbers rather than prospective words. The
next step is to get a real handle on turnover and gross margin calculations,
which, in my experience, no publisher really has. Calculating stock
turn and return on inventory investment, for a store, a chain, a store
section, or for a particular promotion, have to be routine exercises
that every rep can do. I would hasten to add that reps will not actually
be DOING these calculations; for the most part, computers will. But
in the world of vendor-managed inventory, everybody in sales needs to
understand them. The
third step is to analyze results in those present accounts that will
provide sell-through data via EDI. Any store which is not achieving
a stock turn of 3, an annual returns level of 15% of purchases, or an
annual return of $2 for each dollar invested, is a likely candidate
to have its economic performance dramatically improved by vendor-managed
inventory. That will be almost every account. Comparing stock turn levels
by store will reveal a great deal about where your sales opportunities
really are. What
your vendor-managed inventory system will do is to react quickly to
actual sales for a title, based on its history in the account, its history
in the universe, and what you know about its future based on seasonality,
promotions, and so forth. For titles that have not appeared in a store,
you will be looking at the stores relative success with related titles.
For example, a store that is achieving a higher turn for cookbooks than
travel books should probably have its cookbook selection broadened before
its travel book selection, which might even be shrunk to make room for
more cookbooks to achieve a better overall result. Of
course, stores no longer holding the order pen will need a different
way to control the vendors managing their inventory, or they've let
the fox into the chicken coop. We'd
envision that the stores control over the publisher would come from
limiting the total amount of inventory, while keeping an eye with the
publisher on the economic results of the program. Obviously, a publisher
that can't achieve better margin results from an equivalent or lower
inventory investment will find its program eliminated, or its inventory
levels cut back. But from what we've seen of publisher inventory levels
in relation to sales in many stores, publishers could find it very easy
to reduce inventory without losing sales, once they absorb how easy
it is to replace stock when they don't have to do battle with buyers. Of
course, everything we have said about the publishers opportunity to
control inventory for the retailer could be said for the wholesaler
as well. They share the ability to view a title across a wide range
of retail locations and they offer the added advantage of being able
to provide all of the titles a store needs, which no publisher can do. In
fact, there have been short-lived stabs at wholesaler inventory management.
The Paperback Booksmith and Little Professor chains of the 1970s, and
then the beginnings of Borders Bookstores with Book Inventory Systems,
were built on it. These systems were very successful, for a while. For
a long time, stores that had started with Booksmith or Little Professor
systems were among the most useful and successful independent bookstores. The
problems were partly created by the wholesalers need to cut discounts
to create margin to operate what were expensive systems. Even though
we now know that turnover and inventory efficiency can compensate for
a lot of lost discount, stores were understandably tempted to go around
the system when publishers were offering as much as 10 more points of
discount to buy direct. And once that process began, one of the chief
attractions of having this service provided by a wholesaler, the simplicity
of consolidated supply, went by the wayside. As
far as we know, there have been no serious attempts to install vendor-
managed inventory programs, by publishers or wholesalers, since the
information revolution of the 1990s has made it easy to follow sales
and inventory from a distance. Technology today also enables much more
complex and timely algorithms to calculate appropriate stock levels. Of
course, any publisher or wholesaler offering vendor-managed inventory
will have to be prepared to account for information that might come
from the retail level. It may be that the STORE will know about a sales-affecting
event or a local school adoption. It is certain that "special ordering"
capabilities for books customers are willing to wait for that aren't
at an instant moment in the store, will continue to be required. Building
a truly automated inventory management system, calculating optimum inventory
levels from store cash register data, overall sales data, and pending
promotions, as well as taking into account the publishers supply and
reprint situation, is a challenging task. But achieving it will payoff
handsomely. The most obvious benefits are that sales will go up and
returns will go down, but these might not be the most important benefits. A
publisher with such a system in his selling arsenal is suddenly able
to put books where there are no book buyers, a critical tool in an era
where publishers are trying to grow their sales outside the book trade.
And the ability to "meter" books into the supply chain can be a substantial
ad vantage if there's a temporary stock shortage waiting for a reprint
or responding to a publicity break. And
if a vendor-managed approach were to become standard practice, an array
of costs related to catalogs and sales conferences could be reduced
or eliminated. Publishers would look at spending on sales representation
as an investment to be recovered by improved sell-THROUGH, not sell-IN. For
most of us, the fear of serious consequences usually provides more motivation
than the attraction of potential rewards. We are publishing books in
a time when the consequences of the status quo could not be more dire;
the storms are washing so much water onto the boats that a sea-change
is desired by almost every consumer publisher. The change must come
from the publishers, because they are the ones who really pay the price
for the inefficiencies of the current system. No matter how promptly
or slowly the store pays, no matter how much publishers try to punish
accounts with high returns, no matter who pays the freight to ship
product around; the fact will always remain that the books that don't
sell are, most of all, the publishers problem. Vendor-managed
inventory is complicated to tackle and in the beginning it will be hard
to sell. Many accounts will be nervous about it, and so will editors
who are asked to believe that smaller advance placements--which
would be the case with almost all big books--will not doom the
ultimate sale. But
the alternative is to continue as we have been, selling each order one
by one in a process that has become increasingly expensive and decreasingly
effective, to the point that squeezing out a profit has become nearly
impossible for most publishers OR booksellers. Change has to come, and
a distribution chain that features millions of decisions too small to
be worthy of the time it takes to discuss or consider them, but yet
which must be both considered and discussed, seems like the best place
to start.
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