LearnEcommerce
EcommerceQuick Commerce (Q-Comm)25 min

Blinkit Business Model: The 10-Minute Dark Store Revolution

How Blinkit (formerly Grofers) pivoted to become India's largest Quick Commerce player, leveraging density and dark stores.

Updated: 2026-06-21Data as of 2026-06-21By Litmus Research
Blinkit

Blinkit

Everything delivered in 10 minutes

https://blinkit.com

Founded by

Albinder Dhindsa & Saurabh Kumar

Acquired by Zomato ($570M)

Founded

2013

HQ

Gurgaon, India

Team

~4 lakh delivery partners; 2,500+ corporate

Revenue

₹1,709 Cr Q4 FY25 revenue; ₹9,421 Cr Q4 GOV (+134% YoY)

The Great Pivot: From Grofers to Blinkit

The Near-Death Experience (2020)

Grofers was a successful company by most standards, having raised $500M+ and reaching a unicorn valuation. But Albinder Dhindsa, the founder, saw a terrifying trend: The cost of acquiring a customer for next-day grocery delivery was higher than the profit they made on the order. They were in a "Wait-and-See" war with Amazon and BigBasket, and they were losing the battle of unit economics. The burn was unsustainable, and the growth was plateauing in the face of deep-pocketed giants.

The 10-Minute Epiphany: Density over Distance Dhindsa noticed that most grocery shopping in India is unplanned and impulsive. When you realize you're out of tea or sugar at 7 AM, you don't want it "Tomorrow" or even "in 4 hours." You want it "Now." He tested a 10-minute delivery in a few pockets of Gurugram by placing inventory in tiny, basement-style warehouses. The results were staggering: User retention didn't just go up; it tripled. Customers stopped price-checking other apps because the "Immediacy" value prop was so strong that it outweighed a ₹10 difference in potato prices.

Burn the Boats: The Radical Shift In a move that shocked the industry and his own investors, Grofers shut down its entire warehouse-based next-day delivery business—a business that was doing hundreds of millions in GMV. They rebranded to Blinkit and shifted 100% of their focus to "Quick Commerce." It was a "Burn the Boats" moment that either would make them a market leader or bankrupt them in six months. They bet the entire company on the thesis that "Speed is the ultimate product feature."

The Zomato Lifeline and the Synergy Play Zomato eventually acquired Blinkit for ~$568M in an all-stock deal. This was widely criticized at the time as a "bailout" for a struggling sister company. However, under the leadership of Deepinder Goyal (Zomato) and Albinder, Blinkit turned its unit economics around faster than anyone expected. By leveraging Zomato's massive delivery fleet and customer data, Blinkit achieved "Contribution Positivity" in record time. By 2025, Blinkit had become the crown jewel of the Zomato ecosystem, often overshadowing the core food delivery business in terms of growth and margin potential.

Latest Updates (2026-06-21)

FY26Dark-store network scales to 2,243 stores; Eternal pumps in ₹2,600 Cr to fund expansionEntrackr
Q4 FY26Adjusted EBITDA of just ₹37 Cr (~0.3% of NOV) as aggressive store openings compress marginsBusiness Standard
Q4 FY25Revenue ₹1,709 Cr with GOV of ₹9,421 Cr, up 134% YoYEternal filings
2025Blinkit overtakes Zomato food delivery on GOV; renamed parent "Eternal" reorients around quick commerceMoneycontrol

The Problem: Urban Congestion and "Just-in-Case" Shopping

The "Traffic Tax" and the Failure of Hub-and-Spoke

In cities like Delhi, Mumbai, and Bengaluru, driving just 3km can take 40 minutes during peak hours. Centralized warehouses located on the outskirts of the city (the traditional Amazon/BigBasket model) are fundamentally incompatible with speed. The "Last Mile" in India is not just about the distance; it's about the "Time-of-Day" congestion and the "Last-100-Meters" complexity of narrow lanes and gated societies.

The "Just-in-Case" Inventory Trap For decades, the Indian middle class was forced into "Just-in-Case" shopping—buying 5kg of flour or 2 liters of oil once a month and stuffing it into a fridge or pantry. This leads to heavy food wastage and a high upfront cash-flow burden on the household. There was no reliable way for an urban professional to shop "Just in Time" for what they needed for the next meal, leading to a "Planning Fatigue" that dampened consumption.

The "Fragmented Kirana" Reliability Gap While the local Kirana (mom-and-pop) store is fast, it is highly unreliable. You don't know the expiry date from a distance, you don't know if they have your specific brand of Greek yogurt or diapers in stock, and the pricing is often non-transparent. There was a desperate need for a standardized, tech-enabled "Instant" solution that combined the speed of a Kirana with the inventory depth and trust of a modern supermarket.

The Efficiency-Scale Paradox Traditional retailers thought that "Scale" meant bigger warehouses. But in India's dense cities, bigger warehouses actually moved you further from the customer, increasing delivery times and fuel costs. The problem wasn't a lack of products; it was a lack of "Proximity."

Key Metrics (FY24)

₹1,709 Cr Q4 FY25 revenue; ₹9,421 Cr Q4 GOV (+134% YoY)

Revenue

Thin adjusted EBITDA (₹37 Cr in Q4 FY26 as expansion weighs on margins)

Profit

10 Million+ monthly transacting users

Users

1M+ orders/day at peak

Daily Trades

~40%+ of Indian quick commerce (category leader)

Market Share

The Solution: The Hyper-Local "Dark Store" Network

1. The 1.5km Radius Hub: Geometry as a Moat

Blinkit’s solution was to place inventory *insanely* close to the customer. They rented small, low-cost spaces (basements, back alleys, shuttered shops) in prime residential colonies. By keeping the delivery radius under 1.8km, a rider can reach the customer in 6-8 minutes without ever breaking a speed limit. This "Micro-Geo" strategy turned delivery from a logistics problem into a geometry problem.

2. Curated SKU Selection: The Power of the "Top 4,000" Unlike a supermarket with 50,000 slow-moving items, a Blinkit dark store only stocks the top 3,000-5,000 items that satisfy 90% of daily urban needs. This "Selective Density" allows for incredibly high inventory turnover (often 20x a month) and near-zero wastage. They don't sell everything; they sell what you need right now.

3. Formula 1-Style Picking: Engineering the Warehouse Blinkit’s tech is entirely focused on the "Inside-the-Store" experience. Every second saved in the dark store is a second less the rider has to spend on the road. They use heat-mapping and proprietary shelf-coding to ensure that a 15-item list is "Picked and Packed" in under 110 seconds. The packers are guided by AI-driven paths, ensuring they never take an extra step.

4. The Zomato Integration: The "Super-App" Wedge By integrating deeply with the Zomato ecosystem, Blinkit solved the biggest problem in e-commerce: Customer Acquisition Cost (CAC). A person ordering dinner on Zomato is nudged to buy dessert, soda, or breakfast eggs from Blinkit. This creates a massive, high-intent cross-sell funnel with near-zero marginal ad spend, a structural advantage that standalone rivals like Zepto have to fight with expensive VC dollars.

Timeline

2013

Founded as Grofers

Started as a hyper-local delivery service for grocery stores.

2015

Expansion

Expanded to 25 cities but struggled with negative unit economics.

2021

Pivot to 10-Min

Rebranded to Blinkit and pivoted to the Dark Store model.

2022

Zomato Acquisition

Acquired by Zomato for ~$568M in an all-stock deal.

2024

Eternal era

Parent Zomato rebrands to "Eternal"; Blinkit becomes the group's primary growth engine.

FY26

2,243 dark stores

Network more than doubles to 2,243 stores; Eternal invests ₹2,600 Cr to fund expansion, keeping group margins thin.

How Blinkit Makes Money in 2026

Blinkit's economics are deceptively simple: it buys groceries and essentials wholesale, stocks them in micro-warehouses called dark stores, and sells them at a markup delivered in ~10 minutes. In Q4 FY25 it booked ₹1,709 Cr in revenue on ₹9,421 Cr of Gross Order Value (+134% YoY) — but the path to profit runs through four streams, not one.

Commerce margin is the base (~55%).

The gross margin earned on groceries, essentials, and increasingly higher-margin convenience categories is the primary engine. Because there is no retail rent or store-front cost, the dark-store model strips out the "retail tax" of traditional grocery.

Delivery and handling fees (~20%)

— convenience, surge, and small-cart fees — are the lever Blinkit pulls to fix unit economics on low-value orders.

Advertising is the high-margin prize (~20%).

FMCG and D2C brands pay for sponsored placement and shelf visibility at the exact moment of purchase intent. This retail-media revenue is near-pure margin and is the clearest route to category profitability.

Private labels and premium categories (~5%)

round it out, lifting basket economics with owned inventory.

The catch: Blinkit is barely profitable, posting just ₹37 Cr adjusted EBITDA (~0.3% of net order value) in Q4 FY26 as it more than doubled its network to 2,243 dark stores, funded by a ₹2,600 Cr injection from parent Eternal. Profitability is purely a function of order density — more orders in a tight radius is the only path to positive unit economics.

Business Model Canvas

Urgency-Led Urban Households

55%

Metro customers using Blinkit for groceries, essentials, and refill purchases that cannot wait for next-day delivery.

Young Professionals & Students

20%

High-frequency users ordering snacks, beverages, impulse products, and late-night convenience items.

High-AOV Convenience Buyers

15%

Users purchasing premium convenience categories like electronics accessories, beauty, and gifting.

FMCG & D2C Brands

10%

Brands buying sponsored placements and demand capture at the moment of purchase intent.

Speed as the Product

Blinkit sells immediate fulfillment, not just groceries, turning convenience into a habit-forming value proposition.

Dense Dark Store Coverage

Hyperlocal inventory enables reliable fulfillment in minutes across dense urban catchments.

Habit Utility

Frequent grocery and essentials use makes Blinkit part of daily household routines, not occasional shopping.

Retail Media Shelf

Brands gain high-intent ad inventory exactly where purchase decisions are made.

Commerce Margin
55%(Primary revenue engine)

Gross margin from groceries, essentials, and expanding higher-margin convenience categories.

Delivery / Handling Fees
20%(Meaningful)

Convenience, surge, and platform-linked fees that improve unit economics.

Advertising
20%(Fast-growing)

Retail media revenue from FMCG and consumer brands competing for shelf visibility.

Private Labels / Premium Categories
5%(Emerging)

Higher-margin owned or exclusive inventory improving basket economics.

Dark Store Operations35%

Micro-warehouse rent, staffing, and local inventory handling.

Delivery Costs30%

Rider payouts and hyperlocal fulfillment expense.

Inventory & Shrinkage20%

Working capital, wastage, and spoilage management.

Technology & Growth15%

Dispatch systems, demand forecasting, and customer retention.

Growth Strategy: Expansion beyond Grocery to "The Instant Mall"

Phase 1: Grocery Dominance (The Habit Hook)

Blinkit focused on high-frequency, low-margin items like milk, bread, and eggs to build the "Daily Habit." The goal was to become a part of the user's morning ritual. Once a user trusts the app to deliver fresh milk at 7 AM in 8 minutes, the trust is established for higher-value purchases. They essentially used milk as a "loss leader" to win the customer's phone real estate.

Phase 2: The "Blinkit Mall" (High-AOV Electronics & Gifting) Once the habit was formed, Blinkit began expanding into high-AOV (Average Order Value) categories. They now deliver iPhones, PlayStation consoles, hair dryers, and premium cosmetics in under 15 minutes. This creates a "Surprise and Delight" factor and significantly improves the gross margin of the platform. Buying an iPhone on Blinkit is faster than driving to an Apple store, creating a new "Luxury of Immediacy."

Phase 3: Retail Media and the Ad Revenue Engine Blinkit is now a "Retail Media" giant. Brands like Coca-Cola, Tide, and L'Oreal pay billions to be on the "First Screen" or the "Suggested Items" of the app. Because Blinkit knows exactly what you are buying in real-time, their ad targeting is more effective than Google or Meta for FMCG brands. This ad revenue is pure profit and is the secret to why Blinkit reached EBITDA positivity while others were still burning cash.

Phase 4: Hyper-Local Service Expansion Beyond products, Blinkit is experimenting with "Instant Services"—from printing documents to delivering "Print-on-Demand" gifts. By owning the "10-minute pipe" to the household, they can push any service that requires physical fulfillment through their dark store network.

Competitors

BlinkitMarket Leader
Users: 10 Million+ monthly transacting users
Fee: ₹0 / ₹20
Zepto
Users: ~25M annual transacting users
Fee:
Strength: Pure-play focus, fast iteration, and a ~$900M cash war chest after its 2025 CalPERS round.
Weakness: No profitable parent to subsidize burn; still group-level loss-making.
Swiggy Instamart
Users: Pan-India
Fee:
Strength: Swiggy super-app cross-sell and a shared food-delivery rider fleet.
Weakness: Competes with food delivery for capital; trails Blinkit on dark-store count.
BigBasket / BB Now (Tata)
Users: Tata-backed
Fee:
Strength: Deep grocery sourcing, Tata Neu ecosystem, large-basket scheduled delivery heritage.
Weakness: Slower to the 10-minute model; brand tied to planned shopping.
Flipkart Minutes
Users: Walmart-backed
Fee:
Strength: Flipkart logistics, capital depth, and a 500M+ user base to cross-sell.
Weakness: Late entrant still building dense dark-store coverage.

Competitive Moat: Real Estate, Order Density, and the Zomato Nerves

1. The "Physical" Real Estate Moat

There are only a limited number of "Perfect" basement or back-alley spaces in a high-density colony like Greater Kailash (Delhi) or Indiranagar (Bengaluru). Blinkit grabbed these prime spots early on long-term leases. A competitor moving in now has to pay 2-3x the rent or take a spot that is 5 minutes further away—which is a death sentence in a "10-minute" game.

2. The Order Density Barrier to Entry To make money in Quick Commerce, you need high "Rider Utilization" (3.5+ orders per rider hour). This is only possible with massive order density in a small radius. Since Blinkit already has the volume leadership, their unit economics are structurally better than a new player. A new entrant has to pay riders to wait around for orders, whereas Blinkit's riders are constantly moving.

3. Zero CAC (Customer Acquisition Cost) via Zomato Because they are bundled inside the Zomato app, their "Organic" traffic is unrivaled. They don't have to burn millions on Meta or Google ads for every new user. This "Free" funnel from 80 million food-delivery users is a structural advantage that is impossible for independent competitors to replicate without massive capital.

4. The "Freshness" Moat and Wastage Control By using Zomato’s deep data on neighborhood eating habits, Blinkit predicts exactly how many kg of tomatoes or liters of milk will sell in a specific 2km radius today. Their wastage is as low as 2-3%, compared to 10-15% in traditional supermarkets. This efficiency allows them to offer lower prices while maintaining higher margins.

5. Proprietary Tech for "Micro-Geo" Intelligence Blinkit's maps are more detailed than Google Maps for the last mile. They know which apartment complexes have slow elevators, which gates have aggressive security, and which lanes flood during rain. This "Last-Meter" data allows their AI to adjust ETAs with 98% accuracy, managing customer expectations perfectly.

6. Private Labels (The Margin Booster) By selling their own private labels (like "Blinkit Home" or "Grover Fresh") in staples like pulses, grains, and lentils, they capture the manufacturing margin. These products are often 20% cheaper for the customer but 2x more profitable for Blinkit than branded alternatives.

Blinkit vs Competitors

Blinkit vs Zepto

Zepto wins on pure-play speed and focus; Blinkit wins on scale, density, and a profitable parent to fund the war.

DimensionBlinkitZepto
Market position~40%+ share, category leaderFast-growing #2/#3 pure-play
Dark stores2,243 storesAggressively expanding network
ParentEternal (profitable parent)Independent; ~$900M cash war chest
Daily orders1M+ at peakLower volume, still scaling
Profitability₹37 Cr adj. EBITDA (Q4 FY26)Group-level loss-making

L
Litmus Score Comparison

Overall 92 vs 90
95
90
98
95
90
85
95
90
85
80
90
90
95
95
100
75
82
76
Full Blinkit vs Zepto comparison

Blinkit vs Swiggy Instamart

Instamart leans on Swiggy's super-app and shared rider fleet; Blinkit leads on dedicated dark-store density.

DimensionBlinkitSwiggy Instamart
DistributionStandalone app + Zomato cross-sellEmbedded in Swiggy super-app
Rider fleetDedicated quick-commerce fleetShared with food delivery
GOV growth₹9,421 Cr Q4 GOV (+134% YoY)Growing but trails Blinkit scale
Capital tensionFunded by EternalCompetes with food delivery for capital

L
Litmus Score Comparison

Overall 92 vs 89
95
94
98
92
90
90
95
93
85
87
90
91
95
85
100
88
82
82
Full Blinkit vs Swiggy Instamart comparison

Blinkit vs BigBasket

BigBasket wins on grocery sourcing depth and large baskets; Blinkit wins on speed and impulse convenience.

DimensionBlinkitBigBasket
Model10-minute quick commerceScheduled + BB Now quick commerce
HeritageBuilt for instant, small cartsBuilt for planned large baskets
BackingEternal (Zomato)Tata Digital / Tata Neu
Speed to q-commFirst-mover, 2,243 dark storesSlower pivot to 10-minute model

L
Litmus Score Comparison

Overall 92 vs 75
95
88
98
82
90
75
95
80
85
56
90
80
95
76
100
82
82
55
Full Blinkit vs BigBasket comparison

SWOT Analysis

Strengths

  • Category leader with 2,243 dark stores and 1M+ peak daily orders, giving structurally better rider utilization than rivals.
  • Near-zero customer acquisition cost via the Zomato/Eternal app, where food-delivery users are nudged to add Blinkit orders.
  • Fast-growing, high-margin retail-media business: FMCG brands pay for top-of-search placement at the point of purchase.
  • Profitable, publicly listed parent (Eternal) able to fund expansion that standalone rivals must raise VC money for.

Weaknesses

  • Wafer-thin profitability: Q4 FY26 adjusted EBITDA was just ₹37 Cr, about 0.3% of net order value, as new stores drag margins.
  • Lower average order value than horizontal marketplaces like Amazon limits per-order contribution.
  • Heavy ongoing capex: Eternal poured ₹2,600 Cr into the business to fund the dark-store build-out.
  • Exposure to gig-worker pay scrutiny and dark-store zoning/regulatory risk.

Opportunities

  • Blinkit Mall pushes into high-AOV electronics, beauty and gifting, lifting basket sizes and margins.
  • Private labels in staples capture manufacturing margin (often 2x branded alternatives).
  • Instant services (printing, gifting) monetize the "10-minute pipe" beyond products.
  • Quick commerce penetration outside metros still early, leaving a long runway.

Threats

  • !Well-capitalized challengers Zepto, Instamart, Flipkart Minutes and Amazon are all spending aggressively.
  • !A prolonged price/expansion war could keep group margins near zero for years.
  • !Regulatory crackdowns on dark-store zoning or gig-worker classification could raise costs.
  • !Demand concentrated in metros makes the model sensitive to urban consumer slowdowns.

L
Litmus Framework Analysis

92%

Hyper-Local Efficiency.

customer Segment95%

Urban Millennials & Gen-Z Metros.

value Proposition98%

Speed as a Feature.

marketing Channel90%

Zomato Cross-Sell & Brand Virality.

engagement95%

High-Frequency Habit Formation.

income Source85%

Ads, Commissions, and Delivery Fees.

asset Validation90%

Dark Store Density & Fleet Synergy.

core Operations95%

Data-Driven Inventory & Logistics.

strategic Alliance100%

The Zomato Super-App Ecosystem.

expense Validation82%

Path to Profitability through Density.

Discovery90%

Zomato Tab.

Onboarding95%

1-click login.

Experience98%

Magical speed.

Retention92%

Habit formation.

Referral85%

Word of mouth.

product96%
market94%
team95%
financials82%
competition85%

Lessons for Founders: The Dhindsa-Goyal Playbook

1. Have the Courage to Cannibalize Yourself

If Albinder Dhindsa hadn't had the guts to shut down Grofers (a massive business at the time), he would have been slow-boiled by the competition. Founders must be willing to kill their "Cash Cow" of today to build the "Unicorn" of tomorrow. Legacy is the enemy of innovation.

2. Unit Economics is a Function of Density, not Scale Scaling to 100 cities doesn't make a logistics business profitable. Dominating 10 neighborhoods where you have 50% market share does. Win by clusters and "Micro-Markets" rather than spreading yourself thin across a map. Efficiency happens at the node level, not the network level.

3. High-Frequency is the Ultimate Wedge If you can win the "Daily Habit" (Grocery and Milk), you own the customer's attention. Once you own the morning ritual, you can eventually sell everything from iPhones to Insurance. "Own the Morning, Own the Day." High-frequency categories are the highest-value real estate on a smartphone.

4. Ad Revenue is the Profit Engine of Modern Retail Don't expect to make meaningful money solely on delivery fees and retail margins in a price-sensitive market like India. Build a platform that brands must advertise on because you own the "Last Mile" of the customer's intent. Your data is your real product; the groceries are just the vehicle.

5. Supply Chain is your Real Product (The "Back-of-House" Fixation) The app UI is secondary. Your ability to pack a bag in 90 seconds and route a rider in 7 minutes through a traffic jam is your real product. Engineer the "Back-of-House" and the "Logistics Stack" with more intensity than the "Front-End" aesthetic. Speed is the only UI that users care about in Q-Comm.

6. Ecosystem Synergy is the Secret Weapon The Blinkit + Zomato merger is a masterclass in 1 + 1 = 3. Always look for ecosystem partners where you can share the "Fixed Costs" of logistics, technology, and customer acquisition. In a high-burn world, shared infrastructure is the only path to long-term survival.

Key Takeaways

1

Blinkit (formerly Grofers) successfully executed one of the largest pivots in Indian tech, moving from next-day to 10-minute delivery.

2

The "Dark Store" model is the core engine, allowing for hyper-proximity and lightning-fast fulfillment.

3

Synergy with Zomato provides a massive structural advantage, including a shared delivery fleet and zero-cost acquisition.

4

Profitability in Quick Commerce is a function of order density; higher volume in a small radius is the only path to positive unit economics.

5

Beyond groceries, Blinkit is expanding into "Blinkit Mall" (Electronics & Fashion) to increase Average Order Value (AOV).

6

Retail Media (advertising) has emerged as a high-margin revenue stream as FMCG brands compete for the 10-minute shelf.

Frequently Asked Questions

How does Blinkit make money?
Blinkit earns from four streams. Commerce margin — the markup on groceries and essentials — is the base (~55%). Delivery and handling fees add ~20%, near-pure-margin advertising (FMCG brands paying for shelf visibility) adds ~20%, and private labels/premium categories the remaining ~5%. In Q4 FY25 this generated ₹1,709 Cr in revenue on ₹9,421 Cr of Gross Order Value, up 134% year over year.
How does Blinkit deliver in 10 minutes?
Blinkit uses a network of 2,243 "dark stores" — micro-warehouses placed inside dense urban catchments and stocked with ~5,000 fast-moving SKUs at a ~99% fill rate. Because inventory sits 1-2 km from the customer and riders are dispatched algorithmically, the average delivery is 10-12 minutes. There is no shopfront, so the model strips out retail rent.
Is Blinkit profitable?
Barely. Blinkit posted just ₹37 Cr of adjusted EBITDA — about 0.3% of net order value — in Q4 FY26, as aggressive store openings compressed margins. Profitability in quick commerce is a function of order density: only by packing more orders into a tight delivery radius can a dark store cover its rider and operating costs.
Who owns Blinkit?
Blinkit is owned by Eternal (formerly Zomato), which acquired the company — then called Grofers — for roughly $568M in an all-stock deal in 2022. Blinkit has since become Eternal's primary growth engine, overtaking the group's food-delivery business on Gross Order Value, which is why the parent renamed itself "Eternal" to reorient around quick commerce.
How does Blinkit compare to Zepto and Swiggy Instamart?
Blinkit is the category leader with ~40%+ of Indian quick commerce, 2,243 dark stores and 1M+ peak daily orders, and the structural advantage of a profitable parent (Eternal) to subsidize expansion. Zepto is the pure-play challenger with a ~$900M war chest but no profitable parent, while Swiggy Instamart leverages Swiggy's super-app cross-sell and shared rider fleet but trails Blinkit on dark-store count.
What is Blinkit's advertising business?
Advertising — retail media — is roughly 20% of Blinkit's revenue and its highest-margin stream. FMCG and consumer brands pay for sponsored placements and shelf visibility inside the app at the exact moment of purchase intent. Because this revenue carries near-pure margin, it is the clearest path to making the otherwise thin-margin 10-minute delivery model profitable.

Explore the Framework

Dive deeper into the Litmus modules most relevant to Blinkit business model:

More Ecommerce case studies:

External Resources

Want to validate your startup idea?

Use the same framework we used to analyze Blinkit.

Start Free Validation

More in Ecommerce

You Might Also Like

Browse All 165+ Case Studies