Unlocking B2B Advertising's Hidden Power: Long Lags, Large Returns
For decades, the conventional wisdom in marketing has been that business-to-business (B2B) advertising plays a secondary role to direct sales, especially for high-value, complex products.
For decades, the conventional wisdom in marketing has been that business-to-business (B2B) advertising plays a secondary role to direct sales, especially for high-value, complex products. Academic research has largely focused on consumer advertising, leaving B2B marketers with limited empirical guidance. However, Michael Thomas, an assistant professor of marketing at the University of Missouri’s Robert J. Trulaske, Sr., College of Business, is challenging this long-held belief.
In his recent research, soon to be published in “Management Science,” Thomas sheds critical light on the effectiveness of digital display advertising for high-involvement B2B products. This study, conducted in partnership with a semiconductor manufacturer, tracked the impact of advertising on purchases of electronic components — products that are crucial, complex and involve extensive evaluation by teams of engineers and professional buyers. The findings offer profound implications for how B2B companies should strategize their advertising investments.
The Surprising Power of B2B Digital Ads
The study's most striking finding is the sheer magnitude of the return on ad spend (ROAS). For every dollar invested in digital display advertising, the semiconductor manufacturer saw an average return of $12 (with a 95% confidence interval of $4.80 to $24.50) over the year following an ad. This translates to an advertising elasticity of 0.71, a figure that far surpasses typical ROAS and elasticity estimates found in consumer advertising literature, which often hover around $2.50 or elasticities below 0.30.
This robust return suggests that even for products requiring deep technical understanding and significant investment, advertising can effectively inform and influence purchasing decisions. Despite the rigorous evaluation processes, the information conveyed through ads appears to resonate deeply with professional buyers, leading to substantial revenue generation.
The Long Game: Understanding Lagged Responses
One of the most critical distinctions uncovered by this research is the extended time horizon over which B2B advertising effects materialize. Unlike consumer ads, where impact often fades within weeks, B2B advertising for high-involvement products demonstrates long lags between ad exposure and purchase.
- First-time purchases: The lift in first-time purchases lagged ad exposure by 1 to 5 months. This delay aligns with the complex product development and evaluation cycles common in B2B environments, where decisions involve multiple stakeholders and extensive due diligence.
- Repeat purchases: Even more remarkably, the lift in repeat purchases extended 5 to 12 months or longer after an ad was shown. In fact, less than half of the advertising-generated revenue was accrued within the first three months. This suggests that the initial ad exposure can trigger a long-term relationship, leading to sustained revenue streams from recurring orders.
This extended lag has significant implications for how B2B companies measure and evaluate their advertising campaigns. Short-term metrics, while useful for immediate engagement (like website visits, which showed an immediate lift), will fail to capture the true, long-term financial impact of B2B advertising.
Who Responds? The Power of Existing Customers
The study also challenges the consumer-centric notion that advertising primarily drives new customer acquisition. In this B2B context, the research found that existing business customers were responsible for the majority of the advertising returns.
However, a deeper dive revealed a nuanced picture: This lift from existing customers wasn't from them buying products they already regularly purchased. Instead, it was driven by existing customers purchasing new part numbers — likely for new applications or projects. The sequence of events appears to be:
- An ad nudges an existing business customer to explore a new component from a familiar vendor.
- Once this new component is "designed in" or approved, it leads to subsequent, recurring purchases of that specific new part number.
This suggests that B2B advertising can be a powerful tool for expanding wallet share within existing accounts by introducing new solutions or technologies. It highlights the importance of maintaining brand presence and informing even your current client base about your broader product portfolio.
Key Takeaways for Business Leaders:
- Embrace the long view: Shift your B2B advertising measurement beyond immediate clicks and short-term sales. Recognize that significant ROAS for high-involvement products will materialize over months, even a year or more. Implement measurement frameworks that track long-term revenue attribution.
- Actionable Tip: Consider multi-touch attribution models that account for extended conversion windows. Don't pull the plug on campaigns too early if immediate sales aren't skyrocketing.
- Invest in digital display advertising: The study provides strong causal evidence that digital display advertising can be highly effective in B2B markets, traditionally dominated by sales teams. It's not just about lead generation; it's about influencing complex purchase decisions and driving substantial revenue.
- Actionable Tip: Re-evaluate your marketing budget allocation. Are you underinvesting in digital advertising channels, particularly display ads, given their potential for high returns?
- Target existing customers for growth: Don't solely focus your advertising efforts on acquiring new logos. Your existing customer base represents a fertile ground for growth. Use advertising to inform them about new products, technologies or applications that can solve their evolving needs.
- Actionable Tip: Segment your advertising campaigns to specifically target existing customers with relevant new product offerings. Leverage your CRM data to personalize these messages.
- Rethink experimental design: For companies looking to rigorously test their B2B advertising effectiveness, traditional cross-sectional experiments may not be sufficient due to long purchase cycles. Incorporating switchback experimental designs that randomize the timing of ad delivery across geographies can significantly improve the precision of your ROAS estimates and help uncover the true lagged effects.
- Actionable Tip: Work with your analytics and marketing science teams to design experiments that account for the inherent delays in B2B purchasing.
- Advocate for accounting modernization: The current GAAP guidelines, which often require advertising expenses to be expensed in the quarter they are incurred, may disincentivize profitable long-term B2B advertising. Business leaders should advocate for accounting standards that recognize the demonstrably long purchase delays in certain industries.
- Actionable Tip: Be prepared to educate financial stakeholders within your organization about the long-term nature of B2B advertising returns and its implications for financial reporting.
Conclusion
This groundbreaking research offers a compelling case for the strategic importance of digital advertising in the B2B landscape. By understanding the unique dynamics of long lags and the significant role of existing customers, business leaders can unlock substantial, often overlooked, revenue opportunities. The future of B2B marketing demands a shift in perspective — from short-term, sales-centric views to a more patient, data-driven approach that recognizes the hidden power of advertising to drive long-term growth.
Thomas’ study, “Long Lags and Large Returns: Experimental Evidence from Advertising to Businesses,” was co-authored by Marcel Goic and Kirthi Kalyanam. It will appear in “Management Science.”
Mizzou’s Robert J. Trulaske, Sr. College of Business prepares students for success as global citizens, business leaders, scholars, innovators and entrepreneurs by providing access to transformative technologies, offering experience-centered learning opportunities and fostering an entrepreneurial mindset.