Durability in business is shaped less by how quickly revenue grows than by where capital is deployed. Companies that systematically reinvest into structural advantage compound resilience over time, while those optimising for short-term extraction often weaken their long-term position.
In a previous essay, Return on Reinvestment: The Metric That Predicts Business Durability, I outlined a simple framework:
Durability = (ROIC – WACC) × Reinvestment Rate × Time.
The implication is straightforward — sustained advantage depends not just on reinvestment, but on the destination of that reinvestment.
So where should capital flow if the goal is durability rather than speed? What creates the most reliable economic moat?
Contrary to prevailing Silicon Valley orthodoxy, the answer frequently lies in the unglamorous: physical infrastructure. While asset-light digital models dominate venture capital narratives, it is capital-intensive, asset-backed businesses — manufacturing plants, logistics networks, energy systems, and data centres — that consistently demonstrate greater resilience across volatility cycles.
This is not nostalgia for heavy industry. It is recognition that certain economic principles remain constant: control creates pricing power, physical assets establish barriers to entry, and vertical integration captures margin that would otherwise leak to intermediaries.
The Infrastructure Advantage: Barriers That Compound
Infrastructure businesses possess inherent characteristics that convert capital expenditure into durable competitive advantage:
Capital intensity as moat. Building a factory, logistics network, or energy installation requires hundreds of millions in upfront capital. This is not a bug—it is a feature. The same capital requirement that deters new entrants protects incumbents. Brookfield Infrastructure achieved a 14% ROIC in 2025, managing a portfolio exceeding $128 billion in assets across utilities, transport, midstream energy, and data transmission. Their scale creates pricing power and operational leverage unavailable to smaller competitors.
Time as advantage. Infrastructure assets require years to permit, construct, and commission. American Tower, operating telecom towers globally, generates adjusted funds from operations that grew 7% year-over-year, built on assets that took decades to deploy across markets. The lead time required to replicate this footprint is itself a barrier. Digital platforms can scale instantly; physical networks cannot.
Regulatory complexity. Infrastructure often intersects with government policy, environmental regulation, and permitting processes. While bureaucratic friction frustrates operators, it also creates exclusivity. Projects requiring environmental impact assessments, grid connection approvals, or sovereign permits become de facto oligopolies.
Operational expertise as proprietary knowledge. Running a manufacturing facility, optimising a logistics network, or managing energy infrastructure demands domain-specific knowledge that cannot be downloaded or licensed. SBA Communications, managing cell tower portfolios, achieves EBITDA margins around 69% and tower cash flow margins north of 80%—performance reflecting years of operational refinement, not simply owning steel structures.
These barriers compound. A competitor entering a mature infrastructure market faces not one obstacle but four: capital, time, regulation, and expertise. Each dimension reinforces the others, creating moats that widen rather than erode.
The Asset Efficiency Ratio: Measuring Infrastructure Quality
Not all infrastructure is equal. Capital intensity without return is merely cost. What distinguishes exceptional infrastructure businesses is their ability to generate high ROIC despite—or because of—significant fixed asset bases.
I propose a simple framework to complement the reinvestment durability equation:
Asset Efficiency Ratio = ROIC ÷ (Fixed Assets ÷ Revenue)
This ratio measures how effectively a company converts its physical infrastructure into profitable returns. A high Asset Efficiency Ratio indicates superior operational leverage—the business extracts disproportionate ROIC from its asset base.
Consider Helios Towers, operating telecom infrastructure across emerging markets. The company reported a 12.9% ROIC with tenancy ratios improving from 1.9x to 2.05x. The tenancy ratio—the number of telecom operators leasing space on each tower—is critical: the first tenant covers construction costs; subsequent tenants represent pure margin expansion. The steel does not change. The land lease does not change. Yet incremental revenue flows directly to profit. This is infrastructure operating at peak efficiency.
Contrast this with industries where capital intensity correlates with low returns. Utilities and heavy manufacturing typically report lower ROIC despite substantial fixed assets, burdened by commodity pricing, intense competition, and high capital expenditure without corresponding margin capture. The Asset Efficiency Ratio identifies which infrastructure truly compounds value versus which merely ties up capital.
Vertical Integration: Capturing Margin Along the Chain
Infrastructure businesses gain additional durability through vertical integration—controlling multiple stages of production or distribution rather than relying on external suppliers or distributors.
The economics are straightforward: every intermediary in a supply chain extracts margin. Vertical integration recaptures that margin internally. Consider ExxonMobil, operating across the entire oil and gas value chain—from extraction to refining to retail distribution. This integration allows the company to respond swiftly to market shifts and maintain competitive positioning by optimising across divisions rather than negotiating with external parties.
Vertical integration also provides critical supply chain control. Tesla manufactures its own batteries and develops autonomous driving software in-house, creating competitive advantages over automakers dependent on third-party suppliers. During supply chain disruptions—semiconductor shortages, logistics bottlenecks—vertically integrated manufacturers maintain production while competitors face shutdowns.
The Japanese steel industry exemplifies path-dependent vertical integration. By controlling the entire flow from raw materials to finished products, manufacturers maximise cost efficiency and maintain confidence in product quality. Decades of integrated operations create institutional knowledge—manufacturing processes, supplier relationships, quality standards—that cannot be replicated quickly.
Critically, vertical integration transforms working capital dynamics. Businesses controlling their supply chain compress the cash conversion cycle—reducing days inventory outstanding, accelerating receivables collection, and extending payables strategically. Improved working capital efficiency frees cash for reinvestment without external financing, compounding durability over time.
The Asset-Light Myth: When Less Is Not More
The venture capital narrative celebrates asset-light models: low capital requirements, rapid scaling, high valuations. EY research shows asset-light companies outperformed asset-heavy peers by four percentage points in total shareholder returns over five years—a compelling headline.
Yet this data requires context. The comparison conflates sectors: software businesses naturally achieve higher returns on capital than utilities, but they also face greater competitive volatility. Asset-light businesses benefit from variable cost structures and operational flexibility, but they sacrifice pricing power and control.
The asset-light model thrives in environments where network effects and data create moats. Facebook, Airbnb, Uber—these platforms leverage user-generated content and third-party assets to scale without proportional capital expenditure. But critically, their durability depends on maintaining platform dominance. Once competitors emerge with comparable network effects, asset-light businesses lack physical barriers to defend market share.
Asset-light businesses also face dependency risk on external partners and suppliers. Outsourcing core operations—manufacturing, logistics, customer service—introduces quality variability and supply chain fragility. During COVID-19, companies relying on external partners experienced severe disruptions, while vertically integrated manufacturers adapted faster by reallocating internal resources.
The mistake is treating asset-light versus asset-heavy as binary. The correct question is not whether to own assets, but which assets to own. High-quality infrastructure—generating strong ROIC, protected by barriers, secured by contracts—justifies capital intensity. Low-quality infrastructure—commodity operations with thin margins and no pricing power—does not.
Recession Resilience: Infrastructure as Shock Absorber
Perhaps the most compelling case for physical infrastructure is its performance during economic contractions.
Infrastructure businesses generate predictable cash flows, often secured by long-term contracts or regulated rates. KKR research notes that data centres supporting cloud computing customers maintain cash flow stability even during severe downturns because contracts span decades with investment-grade counterparties. When demand collapses, cloud providers do not cancel infrastructure agreements—they are contractually obligated to pay.
Similarly, renewable energy businesses with long-term power purchase agreements provide a cushion against economic downturns through fixed pricing structures. Utilities, waste management, and pipeline operators—essential services with stable demand—perform reliably through recessions. Williams, operating natural gas infrastructure, generates stable cash flows backed by long-term contracts or government-regulated rates, insulating the business from cyclical volatility.
Contrast this with asset-light digital businesses. Media platforms relying on advertising revenue face significant sensitivity to economic cycles—subscribers cancel easily, and advertising budgets evaporate during downturns. Subscription-based software businesses fare better, but even SaaS companies experience churn when corporate clients cut discretionary spending.
Infrastructure's resilience stems from essentiality. Businesses and consumers cannot easily eliminate electricity, water, logistics, or telecommunications. This inelastic demand stabilises revenue regardless of macroeconomic conditions. Research confirms that infrastructure investments delivered defensive performance throughout market cycles, with contractually secured or inflation-linked cash flows providing cushion as interest rates climbed and volatility increased.
Infrastructure Sectors Demonstrating Durability
Certain infrastructure sectors consistently exhibit the characteristics of durable businesses:
Data centres and digital infrastructure. The buildout supporting cloud computing and artificial intelligence requires hundreds of billions in capital investment, backed by long-term fixed revenue contracts with investment-grade customers. Demand projections indicate data centres will grow from 3% of total US power demand to 8% by the end of the decade. The supply-demand imbalance creates pricing power for operators with existing capacity.
Energy and utilities. Despite lower ROIC relative to software, energy infrastructure generates essential, inelastic demand. Renewable energy projects with long-term contracts benefit from inflation-linked escalators and fixed pricing, insulating returns from commodity price volatility.
Logistics and transport. Brookfield Infrastructure's transport operations generated $1.14 billion in funds from operations in 2025, reflecting essential global trade infrastructure. Rail freight, pipelines, and port facilities represent natural monopolies in specific geographies—once established, competitors face prohibitive replication costs.
Waste management and circular economy. Waste collection exhibits steady revenue streams resilient to recessions, supported by municipal contracts and decreasing landfill capacity. Circular economy investments—recycling infrastructure, organics processing—demonstrate attractive barriers to entry through scale, regulatory requirements, and contracted business models.
Telecommunications infrastructure. Cell towers, fibre networks, and satellite infrastructure require massive upfront capital but generate high-margin annuity revenue through multi-tenant leasing. The asset remains fixed; additional tenants represent pure margin expansion.
Working Capital Efficiency: The Hidden Durability Driver
Infrastructure businesses that control their supply chain achieve superior working capital management—another source of compounding advantage.
Working capital efficiency measures how quickly a company converts operations into cash. Infrastructure businesses with tight working capital cycles—short days inventory outstanding, fast receivables collection, extended payables—generate cash internally without external financing. This cash funds reinvestment, creating a self-reinforcing cycle: operational efficiency produces cash, which funds capacity expansion, which improves unit economics, which generates more cash.
Vertical integration directly improves working capital. By controlling suppliers, manufacturers reduce inventory buffers required to hedge against delivery uncertainty. By controlling distribution, companies accelerate payment collection. The cash freed through tighter cycles becomes capital available for reinvestment without diluting equity or increasing leverage.
This dynamic explains why certain infrastructure businesses achieve disproportionate returns despite capital intensity: they deploy reinvested capital efficiently, compressing the cash conversion cycle while expanding capacity. Asset-light models may require less capital initially, but they often face longer working capital cycles due to dependence on external partners and complex coordination across multiple parties.
Capital intensity alone does not create durability; what matters is whether invested capital produces excess returns that can be redeployed at scale. Infrastructure, when structured correctly, converts expenditure into compounding advantage.
Infrastructure as High-Quality Capital Destination
The case for physical infrastructure is not romantic—it is economic. Infrastructure creates durability through barriers to entry, pricing power, vertical integration, working capital efficiency, and recession resilience. These attributes compound over time, converting capital intensity from liability into moat.
The Asset Efficiency Ratio provides a lens to distinguish exceptional infrastructure from mediocre capital allocation. High ROIC relative to fixed asset intensity signals operational leverage; low ratios indicate commodity businesses masquerading as infrastructure.
Asset-light models have their place—particularly where network effects or intellectual property create defensibility. But the default assumption that less capital equals better business is false. The correct framework evaluates which assets generate durable ROIC, protected by structural barriers, and financed by efficient working capital cycles.
Infrastructure represents disciplined reinvestment: capital deployed into physical assets that competitors cannot easily replicate, generating contractually secured cash flows, insulated from economic volatility. For businesses seeking durability, infrastructure is not a burden to minimise—it is a destination to prioritise.
