Long-Term Value at Risk · Working Paper 04
Fossil-fuel use imposes approximately US$3 trillion per year of un-priced damage across Asia-Pacific, roughly US$700 per person. The reversal of that damage is the co-benefit dividend, and where a learning curve has closed the cost gap, it accrues without waiting for a carbon price.
This paper defines and measures the co-benefit dividend: the avoided societal damage the energy transition releases as it displaces fossil energy. In the Pigouvian tradition, an externality persists until priced. On the evidence assembled here, for one large class of decision, energy investment across Asia-Pacific, that condition no longer holds.
The central move is a boundary on the standard economics of externalities. Where a technology follows a learning curve steep enough to cross the incumbent's cost, the privately rational and the socially beneficial decisions converge, and the externality begins to fall without a price. This is a refinement of the Pigouvian programme, not a break: the corrective price remains for every externality whose abatement cost is not falling.
The convergence is sectoral. It holds for energy-related emissions, approximately 73 per cent of the global total. It does not hold for agriculture, land use, or aviation, where a price remains necessary. Section 7 of the paper states this boundary.
Sovereign wealth and long-horizon institutional capital
You steward capital across Asian economies whose populations you cannot exit. The paper documents the co-benefit dividend of approximately US$700 per person per year in Asia. This is real value released in the geographies your holdings depend on, as a by-product of transition already commercially rational. The dividend accrues to workforces, customer bases, and supplier tiers your holdings run through.
Development and catalytic capital
You deploy concessional, blended, or catalytic capital toward the Asian energy transition. The paper documents the co-benefit dividend of approximately US$700 per person per year that your capital releases as a by-product of the ordinary cost crossover. It is the human-return case that sits alongside the financial-return case, without requiring the return case to be sacrificed.
Regulators and policymakers
You set policy for the transition. You have watched the case for carbon pricing collide with the politics of who pays. The paper shows why the reduction of the externality no longer waits on that resolution for energy investment across Asia-Pacific. Where clean alternatives now cost less, the reduction happens through capital allocation. Policy attention can shift to the levers that carbon pricing was never going to handle.
Family offices and multi-generational stewards
You steward multi-generational capital. You want returns that align with what the next generation will inherit. The paper documents the dividend the transition releases in the same regions and sectors your long-horizon portfolios sit in. The dividend is not a return on your capital directly; it is the value your holdings' operating environments retain when the externality falls.
The co-benefit dividend is the value released to Asian populations when fossil-fuel use falls, measured at approximately US$700 per person per year. It counts avoided damage across health (reduced air-pollution mortality), productivity (reduced heat-stress loss of working hours), and displaced water and food-system stress. The dividend accrues because clean-energy costs have already crossed below fossil costs in most regional applications, so the reduction happens through ordinary capital allocation rather than through a price on carbon. The paper documents that the dividend is a by-product of the energy transition, not something that requires a separate policy instrument.
Fossil-fuel use imposes approximately US$3 trillion per year of damage across Asia-Pacific through health, productivity, and water-and-food-system channels. This damage is un-priced by markets but paid all the same by households, businesses, communities, and governments. The paper draws the figure from published health-cost, productivity-loss, and water-stress estimates across the region. Because the damage is aggregate and diffuse, it does not sit on any single ledger, which is exactly why markets fail to price it in the ordinary way.
Yes, for the substantial share of externalities that arise from fossil-fuel combustion in electricity, transport, and industrial heat. The paper argues that once clean alternatives cost less to build and run than fossil alternatives (see WP-03), the externality falls as a by-product of ordinary capital allocation. Carbon pricing was designed to make the polluter pay when clean alternatives cost more. Where clean alternatives now cost less, the reduction happens through the market rather than through a price signal. The paper does not argue against carbon pricing where it applies; it argues that a substantial share of the externality falls without waiting on the policy.
The dividend is largest for fossil-fuel combustion externalities that fall when the underlying activity falls. It does not apply to externalities that arise from processes that continue in a transitioned economy. Land-use change, agricultural methane, cement chemistry, and some industrial process emissions require different levers: land management, dietary change, process substitution, or carbon capture. The paper is explicit that the co-benefit dividend addresses roughly the same 70 per cent of emissions that cheap electricity and green molecules address. The remaining share requires targeted policy and process innovation.
Attribution runs from the enterprise's operations, workforce, and supply chain outward. An enterprise operating in Asia-Pacific carries workforce exposure to air-pollution mortality and heat-stress productivity loss that scale with its regional footprint. Transition action at the enterprise reduces that exposure directly for its own workforce and, through supply-chain effects, for its supplier tier. The paper offers order-of-magnitude attribution based on regional presence and workforce size. Precise per-firm attribution requires enterprise-level data on operations and supply chain.
Heat is a productivity tax paid entirely by the exposed labour market. The International Labour Organization projects Asia-Pacific loses approximately 3.7 per cent of working hours to heat stress by 2030. This loss lands on every heat-exposed workforce in a region simultaneously and cannot be diversified through firm selection. Heat also correlates with disease burden, water stress, and food-system strain, so the exposures compound. The paper argues heat is one of the largest components of the un-priced damage that the co-benefit dividend releases when transition action reduces regional temperature trajectories over time.
WP-04 draws out the welfare-economics consequence of the cost crossover WP-03 dates. Where WP-03 shows when clean undercuts fossil in Asian energy systems, WP-04 shows what that crossover releases as a stream of avoided societal damage, and why the release does not depend on resolving the politics of carbon pricing. WP-01 provides the universe on which the dividend attribution runs; WP-07 carries the same logic into portfolio-level transition alpha.
Full paper on SSRN: The Co-Benefit Dividend: When Falling Costs Retire the Need to Price Externalities
Author page: Joanne Flinn on SSRN
Download this page as a PDF for sharing or board papers.