Over the last few weeks I’ve had some meetings where the topic of market size could have been a bit more rigorously addressed. It’s a hard issue to tackle – particularly when you’re creating a new market – but the topic is critical in every pitch. There are some occasions where the market size is fairly straightforward. For example, I’ve looked at a few female focused online fashion companies recently and while I know this is a huge market, it’s still helpful to dive into the issue of sizing for a couple reasons:
1. Most companies are going after a slice of the market. The fashion market for 15-44 year old females with household income of $40,000-$80,000 dollars is quite different than the market of all female fashion. This is an obvious point but I’d say that about 1/3rd of the pitches I see contain market size estimates that include sectors that are outside of the focus of the business.
2. The market sizing discussion is incredibly helpful in getting to know how you think. Most of the time the intro pitch is the first meaningful interaction between entrepreneur and VC. I like to think of the market sizing discussion as almost an intellectual discourse between professor (entrepreneur) and student (vc).
With that in mind, I’d like to share a couple different ways that I like to think about market sizing in the consumer internet space. There are a variety of other ways to think about sizing and a lot has been written on the topic. I’d encourage everyone to spend some time on Google and read up on other opinions.
Established Market, New Product
Continuing on with the example above, let’s say I’m starting a women’s fashion company that aims to sell scarves online. Those of you that know me are probably chuckling right now since I’ve been wearing the same 3 scarves for the last few years now and am thoroughly unqualified to run such a business.
Let’s take a first cut here.
Market Size = (number of females in the US in the target market) * (average number of scarves purchased by females) * (average price point)
The types of scarves that I’m selling will appeal to 15-44 year old females with a household income (HHI) between $40,000-$80,000/year. The US census data groups people into segments of under 15, 15-24, 25-34, and 35-44. The data tells me there are 8.7MM females in this category. Not a bad start. Unfortunately, my instincts tell me that scarf consumption varies dramatically by geography. I’m going to make a simplifying assumption and segment consumers into two groups: California People (which also include people from Arizona, New Mexico, Texas, and other states where scarf consumption is de minimis) and Everyone Else. Note that I’m a New Yorker, though, I must admit that some of my favorite people are from California! After looking through a map of the US and segmenting different states into warm and cold climates , I’ve decided that 20% of the US population are California People and 80% are Everyone Else.
Next, I need to determine how many scarves are purchased by the average 15-44 year old female in both of these segments. To do this, I got on the phone and called up 20 friends in each of these groups. Those of you that did not major in History like I did will likely groan that this is not a statistically valid sample. I agree. It’s a start. If you want a statistically valid sample, there are a number of online survey companies that can get you this data fairly cheaply. My very un-rigorous survey reveals that the California People buy 0.3 scarves/year and Everyone Else buys 1 scarf/year. Moreover, I got the sense that Everyone Else takes the quality and fabric of their scarves seriously and probably pays more on average per scarf than the California People. More on this later.
Now we’re on to the final stretch. What is the average price point of a scarf? In my informal survey above, I asked my friends for their average price point but most of them didn’t remember and those that did seemed to give me inflated numbers (so snobby!). To get insights into this question, I went on Amazon, navigated to the women’s clothing section and searched for the keyword “scarf.” Here is the breakdown:
· Under $25: 3,758 (50%)
· $25-$50: 1,728 (23%)
· $50-$100: 1,348 (18%)
· $100-$200: 524 (7%)
· $200+: 107 (1%)
· Total: 7,465
Using this informal technique, let’s assume that the average price point is $25 for Everyone Else and a slightly lower $20 for the California People. These are a decent ballpark approximation but can obviously be refined further.
Taking the data we’ve gathered, our first cut at a market size for my new company is:
(8.7MM females * 80% Everyone Else) * (1 scarf/year) * ($25 average price point) + (8.7MM females * 20% California People) * (0.3 scarves/year) * ($20 average price point) = $187,050,000
Does this number seem reasonable or is it out of line with reality? As a quick sanity check, the next thing I did was go to the Consumer Expenditure Survey maintained by the Bureau of Labor & Statistics and look at the total amount spent on clothing by US households and the look at what percentage of the total clothing market the $187,050,000 represents.
Lastly, I asked myself, what is a reasonable amount of the market that I could capture? Fashion is a particularly fragmented market and even if I become the category killer in scarves, it’s unlikely I’d get more than a few percent of the overall market. Let’s say I can capture 5% of the overall scarf market – an extraordinary number in any fashion related category, then I’d be making around $9.3MM/year given the numbers above.
Note that this is a quick-and-dirty analysis. An actual analysis should be significantly more rigorous in terms of data quality and layer in more refined assumptions. For example, my segmentation of California People and Everyone Else, while entertaining, is too simplistic to withstand real scrutiny. The same goes for my methods of data collection. Tommorow I'll post some thoughts on how to approach a new market.