Short answer

When expanding product lines, designers and marketers must balance the benefits of variety with the potential for consumer confusion and reduced brand loyalty.

Field: Innovation & Markets
Source: International Journal of Research in Marketing (2022)
Method: Econometric modeling (Bayesian learning model)
Evidence: Moderate effect

Introducing new Stock Keeping Units (SKUs) can paradoxically decrease consumer brand choice by increasing uncertainty about product quality, especially for less frequent buyers. This innovation & markets research insight is drawn from a 2022 study published in International Journal of Research in Marketing. Using Econometric modeling (bayesian learning model), researchers explored how this design variable affects real-world outcomes. The key design takeaway: When expanding product lines, designers and marketers must balance the benefits of variety with the potential for consumer confusion and reduced brand loyalty.

Study

Innovation & MarketsHigh ImpactModerate effect

New Product Introductions Increase Quality Uncertainty, Dampening Brand Choice

Introducing new Stock Keeping Units (SKUs) can paradoxically decrease consumer brand choice by increasing uncertainty about product quality, especially for less frequent buyers.

International Journal of Research in Marketing · 2022

Key Findings

01Adding new SKUs can elevate a brand's perceived quality level.
02However, new SKUs also increase consumer uncertainty about the brand's overall quality.
03This increased uncertainty dampens brand choice, particularly for light customers.

Application

Design takeaway

When expanding product lines, designers and marketers must balance the benefits of variety with the potential for consumer confusion and reduced brand loyalty.

How to apply

Before launching a new SKU, conduct consumer research to gauge potential impacts on perceived quality and uncertainty. Ensure marketing communications clearly articulate the benefits and quality of new offerings.

Project actions

01When researching new products, consider how they might affect overall brand perception, not just the individual product.
02Think about how different types of consumers might react to product line extensions.

Method & Evidence

AimHow do new product introductions (SKUs) influence consumer perceptions of brand quality, quality uncertainty, and subsequent brand choice over time, particularly in emerging markets?

MethodEconometric modeling (Bayesian learning model)

ProcedureThe researchers analyzed household scanner panel data from China, estimating a model that accounts for varying quality and different types of new product additions (sensory vs. non-sensory) across two consumer packaged goods categories.

ContextConsumer Packaged Goods (CPG) in an emerging market (China)

Variables

IVIntroduction of new SKUs (type and quantity)

DVPerceived brand quality, quality uncertainty, brand choice

CVConsumer learning, market context (emerging market), CPG categories

Strengths & Limitations

Strengths

+Utilizes a large, real-world dataset.
+Employs a sophisticated econometric model to capture complex consumer behavior.

Limitations

The complexity of modeling consumer choice can be challenging, and real-world market dynamics are multifaceted.

Reliability & validity

The use of a Bayesian learning model and real-world scanner data enhances the ecological validity. Reliability would depend on the stability of the estimated model parameters over time.

Think critically

To what extent does the type of product category (e.g., high-involvement vs. low-involvement) moderate the relationship between new SKUs and quality uncertainty?

Design Principles

"Product line extensions should be managed to minimize consumer uncertainty regarding core brand quality."

This research highlights a critical trade-off in product line expansion. While new offerings can signal innovation and potentially improve perceived quality, they also introduce complexity that can confuse consumers and lead to hesitancy in brand selection.

What This Means for Your Design

Adding new items to a product range can make people less sure about the quality of the whole brand, which might make them choose a different brand instead.

How to use in your project

1.Reference this study when discussing the potential downsides of extensive product line diversification in your design project's market analysis or justification sections.

Add to My Project

Quick Cite

Paragraph starter

Research indicates that while new product introductions can enhance perceived quality, they may also increase consumer uncertainty, potentially leading to a dampening of overall brand choice, particularly among less engaged customer segments. This suggests a need for careful strategic planning in product line expansion to mitigate potential negative impacts on brand perception.

Source

International Journal of Research in Marketing

The dark side of innovation: How new SKUs affect brand choice in the presence of consumer uncertainty and learning

journal · 2022

View source

Questions About This Research

What does the research say about new product introductions increase quality uncertainty, dampening brand choice?: When expanding product lines, designers and marketers must balance the benefits of variety with the potential for consumer confusion and reduced brand loyalty. Evidence: International Journal of Research in Marketing (2022).
Why does "New Product Introductions Increase Quality Uncertainty, Dampening Brand Choice" matter for design?: This research highlights a critical trade-off in product line expansion. While new offerings can signal innovation and potentially improve perceived quality, they also introduce complexity that can confuse consumers and lead to hesitancy in brand selection.
How can designers apply this research?: When expanding product lines, designers and marketers must balance the benefits of variety with the potential for consumer confusion and reduced brand loyalty.
What were the main findings?: Adding new SKUs can elevate a brand's perceived quality level.. However, new SKUs also increase consumer uncertainty about the brand's overall quality.. This increased uncertainty dampens brand choice, particularly for light customers.
What research method was used?: Econometric modeling (Bayesian learning model).
How strong is the evidence?: Evidence strength is rated Moderate effect, based on a 2022 journal from International Journal of Research in Marketing.
What should I do differently in my next project?: Before launching a new SKU, conduct consumer research to gauge potential impacts on perceived quality and uncertainty. Ensure marketing communications clearly articulate the benefits and quality of new offerings.
What are the limitations?: The study focused on specific CPG categories in China, and findings may vary across different product types and market contexts.