Oct 9, 2022 · 1h 4m · lennys-podcast
Developing a growth model + marketplace growth strategy | Dan Hockenmaier
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Marketplace strategist Dan Hockenmaier breaks down the mathematical foundations of growth modeling and shares operational frameworks for governing, scaling, and defending complex multi-sided marketplace ecosystems.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. Lenny holds 30.4% of the talking time here. How this is scored →
Lenny as informed peer 4.7 Guest teaching 6.2 Guest disagreement 1.7 Lenny pushing back 1.4
speaking balance: gold is Lenny, purple is the guest (3 minute bins)
Sharpest disagreement ▶ 50:18 Dan rejects the recurring unbundling narrative
Dan forcefully dismisses popular tech commentary claiming major platforms will be unbundled, citing structural scale and cross-category LTV advantages that vertical clones cannot match.
Hardest push from Lenny ▶ 35:11 Lenny challenges demand primacy with supply constraintsLenny intervenes in Dan's framing by citing Bill Gurley's counter-argument that locking up hard-to-acquire supply is often the actual prerequisite for winning customer demand.
Biggest teaching moment ▶ 23:41 Dan deconstructs correlation traps and churn resurrectionDan systematically breaks down why attempting to force churned users into power-user behaviors fails and warns product teams against wasting resources on churn resurrection.
Lenny holds their own ▶ 41:42 Lenny details Airbnb's massive internal pricing operationsLenny demonstrates deep insider knowledge by sharing how Airbnb deployed a 100-person dedicated pricing algorithm team to tackle multi-sided marketplace dynamics.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | Lenny as informed peer | Guest teaching | Guest disagreement | Lenny pushing back | Why |
|---|---|---|---|---|---|---|
| Dan Hockenmaier’s Background Across Thumbtack and Faire | 4 | 5 | 1 | 1 | Lenny establishes his collaborative history with Dan and frames the core discussion around growth models. Dan provides a clear breakdown of his career transitions from Thumbtack to consulting and Faire. | |
| Core Building Blocks of SaaS and Marketplace Models | 4 | 6 | 1 | 1 | Dan outlines the foundational building blocks of SaaS and transactional growth models. Lenny synthesizes the high-level formula for the audience. | |
| Overcoming Assumption Stacking with Pod-Level Mini Models | 5 | 6 | 2 | 2 | Dan warns against compounding assumptions in master marketplace models and recommends pod-level mini models. Lenny presses for concrete examples of how teams manage these levers. | |
| Modeling Marketplace Quality, Risk, and Core Tensions | 4 | 6 | 2 | 1 | Dan details how non-linear teams like quality and fintech manage core trade-offs between volume and long-term retention or default risk. Lenny brings up Dan's extensive consulting background at Basis One. | |
| The High Leverage of Customer Retention in Growth Models | 4 | 7 | 2 | 1 | Dan demonstrates why growth models consistently reveal customer retention as the most leveraged variable. Lenny prompts practical guidance on where founders can realistically expect to move the needle. | |
| Thumbtack Case Study: Shifting Focus to Customer Repeat Rates | 6 | 6 | 1 | 2 | Dan walks through Thumbtack shifting resources from top-of-funnel conversion to repeat rates. Lenny connects this to Airbnb's historical internal analyses on retention leverage. | |
| The Pitfalls of Correlation Analysis and Churned User Resurrection | 5 | 7 | 3 | 1 | Dan rejects correlational feature analysis and resurrected user campaigns as analytical failure modes, urging focus on first-run experience variability. Lenny reinforces the recurring importance of onboarding across high-growth startups. | |
| Sponsor: Eppo Experimentation Platform | 3 | 5 | 1 | 1 | Following the mid-roll ad, Dan defines marketplace liquidity and unit economics, emphasizing that nothing else matters until core liquidity thresholds are met. | |
| Measuring and Prioritizing Share of Wallet Depth | 5 | 6 | 1 | 2 | Dan argues that share of wallet depth is superior to pure breadth growth for defensibility. Lenny clarifies the mechanics across consumer versus B2B marketplaces. | |
| Supply vs. Demand Focus: Why Demand Is the Ultimate Currency | 6 | 6 | 2 | 3 | Dan asserts demand is the ultimate marketplace currency. Lenny introduces nuance by referencing Bill Gurley's thesis that hard-to-acquire supply is often the prerequisite driver of demand. | |
| Constructing Dual-Sided ROI Equations for Marketplace Acquisition | 4 | 6 | 1 | 1 | Dan explains how to formulate dual-sided ROI equations that incorporate cross-side acquisition costs and payback periods rather than obsessing over static buyer-seller ratios. | |
| Marketplace Mechanics: The Light Touch of Ecosystem Governance | 4 | 7 | 2 | 1 | Dan uses the construction worker versus gardener metaphor to highlight the complex, delayed second-order effects of marketplace incentive changes. | |
| Assembling Marketplace Expertise and Rigorous Pricing Strategy | 6 | 5 | 1 | 1 | Lenny highlights Airbnb's dedicated 100-person pricing team led by Carla Pelicano to illustrate Dan's point on the complexity of marketplace pricing. Dan explains prioritization across adjacent TAM expansions. | |
| Prioritizing Core Customer Experience Over Premature GTM Scaling | 4 | 6 | 2 | 1 | Dan emphasizes that early expansion requires perfecting the end-to-end product experience before letting go-to-market spending get ahead of customer satisfaction. He also examines SaaS-to-marketplace transitions. | |
| Horizontal vs. Vertical Marketplaces and the Limits of Unbundling | 6 | 7 | 3 | 2 | Dan strongly pushes back against common unbundling narratives, arguing that horizontal scale yields unbeatable LTV and SEM advantages. Lenny dissects the high-AOV vs high-frequency dynamics using Airbnb and RigUp. | |
| The Structural Barriers and Fragmentation Requirements of B2B Marketplaces | 5 | 6 | 1 | 1 | Dan explains why B2B marketplaces face structural headwinds due to lower natural industry fragmentation and founder blind spots. Lenny asks for specific definitions and failure cases. | |
| Mitigating Disintermediation and Managing High Transaction Value Risks | 4 | 7 | 2 | 1 | Dan explains the disintermediation threat when absolute transaction dollar values are high, contrasting low-commission Uber rides with industrial B2B sourcing orders. | |
| The Future of Marketplaces: Managed Value Chains vs. Full Consolidation | 5 | 7 | 2 | 2 | Dan maps the historical trajectory of marketplaces toward higher take rates and heavier value-chain management, predicting full consolidation for commoditized industries. Lenny distills the supply ownership definition. |
Statements from this episode (36)
Hockenmaier: Thumbtack grew more than 10x during his three-year tenure
“I was there for a little over three years and we more than 10 X the business in that time.”
Hockenmaier: Half the value of a growth model is simply building it
“And it's typically built in a spreadsheet, which has a really nice feature of being very hard to fake. Like you can talk about a business conceptually. But when you actually have to get it to line up and link in a model, it's very hard to not force yourself to…”
Hockenmaier: Growth models are for opportunity assessment, not financial forecasting
“I think importantly, it is not a forecasting tool. So it's not gonna replace what your finance team is building to project the business. In fact, Often the output can be highly variable because you're playing with lots of these assumptions, but it is a great t…”
Hockenmaier: Simple SaaS growth models require only acquisition, retention, and monetization
“If you're modeling a relatively simple SaaS business, those are the only core building blocks you need.”
Hockenmaier: Payback period is a far better metric than LTV:CAC
“Thinking about something like payback period is a much better measure of paid marketing performance than LTV to CAC because the speed at which you get enough money back to then go acquire another customer has much more bearing on how fast your business can gro…”
Hockenmaier: Marketplace growth models easily fail from stacked supply-demand assumptions
“As soon as you start stacking assumptions, you're highly sensitive to how many assumptions do you have to make? And do you know how to make that assumption? And marketplaces kind of create complexity on both of those, because for the first piece, you're modeli…”
Hockenmaier: Use basic company models paired with team-level mini growth models
“The thing that I have gravitated to more as I've done more of this is like one very basic high level conceptual model. So that's like the building blocks you talked about, which as simply as possible describes how the whole system works. And so you start to ge…”
Hockenmaier: Team growth models split into funnel management versus tension management
“I think there's probably like two core archetypes for this. So if you have something that's more like a growth team, it's a little bit simpler. They're typically managing some kind of funnel and they can understand, do I want to work on driving more traffic, m…”
Hockenmaier: Adding low-quality supply boosts short-term GMV but harms retention
“So if I let on a bunch of new supply to a marketplace, probably the first thing that happens is our GMV or our revenue goes up because we have all these new suppliers, which can transact with demand. But if those are on average lower quality, it's going to deg…”
Hockenmaier: Growth is far more sensitive to retention than people intuit
“One of the immediate things that you see when you build these is that you're Growth is much more sensitive to customer retention than you can ever intuit. Because there's a lot of interaction between having a healthy retained customer base and everything you c…”
Hockenmaier: Growth models establish a common currency for resource allocation
“The most difficult thing about making that kind of effort Is developing a common currency by which you can trade off their efforts. So like this team is saying they can move this metric by X and this team is moving this metric by Y. I have no way to make those…”
Hockenmaier: Thumbtack's growth model shifted resources from top of funnel to lifecycle
“Building this model helped us internalize that we needed to shift a bunch of kind of resources from top of funnel to deeper in the stack.”
Hockenmaier: Improving marketplace retention requires core product levers, not notifications
“If you were trying to remove a, move a retention style metric, rarely should you go right to the source and send them more email or push notifications or something like that. It's really actually about understanding what is the customer experience and what mat…”
Hockenmaier: The biggest retention wins come from early user experience
“Very often, I think the biggest wins in retention come from inflecting the early user experience. So if you're three, six, 12 months out, usually a customer has formed a pretty strong opinion about whether or not they like this product and they have a pretty g…”
Hockenmaier: Forcing average users into power-user behaviors almost never improves retention
“I think one of the most common analytical failure modes is this pattern, which is our best users do X. So why can't we make other users do that same thing and then drive future retention? And it almost never works that way because there's something unique abou…”
Hockenmaier: Marketplaces are capital intensive to start but build compounding defensibility
“They're like, they're very hard to get started, super capital intensive to get started, but once they're rolling, they're very hard to stop. You get these kind of Compounding defensibility and gains that makes them very hard to stop.”
Hockenmaier: Later marketplace cohorts often see lower CAC and higher LTV
“So typically, as you acquire more and more customers, you're acquiring the marginally good fit customer over time. And your CACs go up, your LTVs go down, it gets harder and harder. Marketplace actually the inverse, like the supply of liquidity is improving, t…”
Hockenmaier: Nothing matters for a marketplace until achieving liquidity
“Essentially until you have a liquid marketplace, really nothing else matters. And so this should be the primary thing you're focused on defining and then building towards. And this is why you hear a lot of advice to marketplaces to basically cut scope. Down to…”
Hockenmaier: Marketplaces cannot easily capture high share of wallet on both sides
“The higher it is, the less likely a customer is to multi-tenant, meaning use another marketplace or another service. And ideally you want that customer to commit to using just this marketplace and the higher share of wallet is, the more likely that is. But I w…”
Hockenmaier: Growing share of wallet creates more defensibility than acquiring customers
“Like if you could tell me we could grow GMB, 10% by getting 10% more customers or by getting 10% of more of our current customers wallet, I would take the latter because You now have a deeper relationship with them, which tells you something more about the fut…”
Hockenmaier: Aggregating demand determines the winning marketplace
“I think ultimately demand is the only thing that matters. If you are successful at aggregating the demand in your industry, you will have the winning marketplace.”
Hockenmaier: Marketplaces should only acquire supply that improves customer experience
“You only should acquire supply to the extent you understand how it impacts demand.”
Hockenmaier: Dual-sided ROI equations allow marketplaces to ignore balance ratios
“Actually the thing that matters is can you write an ROI equation for acquiring supply and demand, which fully internalizes the marketplace dynamic. And so what I mean by this is like, if you're acquiring a new customer, you need to Include the CAC of acquiring…”
Hockenmaier: Running marketplaces is like gardening ecosystems whereas SaaS is construction
“If you think about running a marketplace, you're basically like a gardener. You have to have a very light touch. Like if you're building a SaaS business, you're a construction worker. You're like building the product and the features and selling it. And it's t…”
Hockenmaier: Marketplace expansion should prioritize adjacency over TAM size
“Beyond a certain point, TAM or the size of the market actually matters very little because these are all big enough that they would dramatically inflect the curve of the business. If you make them work, it's much more relevant to focus on a couple of things. O…”
Hockenmaier: Marketplace expansion requires keeping GTM in lockstep with product readiness
“It's who can deliver an Incredible end-to-end customer experience first, even if for a smaller number of customers, because that's what creates the flame where actually like customers are really loving it, retain talking about it, and you can then expand from …”
Hockenmaier: Expanding a marketplace to SaaS is easier than the reverse
“So broadly, I will say, I think it's easier for a marketplace to go SaaS than it is the other direction.”
Hockenmaier: Marketplace take rates are 10-20% versus 2-3% in SaaS
“This is why like the effective commission of a marketplace, often, 1015, 20% is much higher than the effective commission of a SaaS business in the two to three percent range.”
Hockenmaier: The thesis of unbundling horizontal platforms is overhyped and rarely succeeds
“Broadly though, I think that we overhyped the idea of unbundling. So I think every six months I've seen articles, somebody wrote, this is the unbundling of Reddit, the unbundling of LinkedIn, the unbundling of Facebook. We're going to take All those blue links…”
Hockenmaier: Horizontal platforms beat vertical rivals on SEM via higher LTV
“And so our customer LTV was always higher and we would always win when we were bidding against those other customers on SEM keywords that were relevant to that category. So it's like, it becomes very hard to compete if you're picking off this kind of like narr…”
Hockenmaier: Low-frequency marketplaces struggle with customer retention and reacquisition
“I do think if you go to a place that is low frequency, It comes with all kinds of new challenges because without frequency, customers forget about you. And so what is the hook to get them to come back? Do you have to reacquire traffic? It creates a whole other…”
Hockenmaier: Concentrated sides break marketplaces because they hold too much leverage
“The reason we won't see a huge explosion in this area is that B to B also comes with something else, which is much lower fragmentation in many cases. And you need fragmentation for a good marketplace. Like the more concentrated either side of your market is, t…”
Hockenmaier: High dollar transaction sizes incentivize marketplace disintermediation
“Like one principle to use here is like how many total dollars are attached to each transaction in the marketplace. When it goes above a certain amount, it becomes much more attractive to figure out how to go around the marketplace.”
Hockenmaier: Opendoor is an e-commerce business, not a marketplace
“People talk about open door as a marketplace. But it's not, it's an e-commerce website, which has the highest price points you can imagine because you're buying houses, right? But there's no like supplier on the other side. They've already bought the house. So…”
Hockenmaier: Marketplaces survive on supplier creativity and consolidate under commoditization
“The variable to me that matters in deciding which case you're going to have, whether they consolidate or not, is how much creativity there is in the space. So like, how much do you need the supplier to be coming up with interesting new things for your customer…”