Rise of Collaborative Consumption Patterns Among Single-Person Households in South Korea

Apr 27, 2026, 09:59
KoreaSociety

Introduction

This report examines the emergence of 'sobun' meetings, a practice where individuals coordinate to share the purchase and distribution of bulk goods and food services in South Korea.

Main Body

The phenomenon of 'sobun' meetings involves the organization of strangers via digital platforms, such as the Karrot application, to divide the cost and quantity of items that exceed the requirements of a single consumer. These arrangements encompass a variety of goods, ranging from floral arrangements to specific food brands like Yupdduk, where the minimum serving sizes are designed for multiple persons. In certain instances, such as with Costco warehouse retail, participants also coordinate logistical requirements, including transportation and scheduling, to access bulk pricing that would otherwise be financially or physically impractical for an individual. This behavioral shift is correlated with a significant increase in the prevalence of single-person households. According to December data from the Ministry of Data and Statistics, such households reached 8.05 million in 2024, representing 36.1% of the national total. Demographic distribution shows that the highest proportion of these households consists of individuals aged 70 and above (19.8%), followed by those aged 29 and below (17.8%) and those between 30 and 39 (17.4%). Geographically, the highest concentrations are found in Seoul (39.8%), Daejeon (39.8%), and Gangwon province (39.4%). Furthermore, macroeconomic indicators suggest a heightened financial burden regarding essential goods. In 2025, the consumer price index (CPI) for 144 government-designated living necessities rose by 2.4%, surpassing the general CPI increase of 2.1%. This represents the fifth consecutive year in which the inflation rate for essential necessities has exceeded the overall CPI, suggesting that the actual cost of living for basic requirements is increasing at a rate higher than the general economic average.

Conclusion

The growth of shared procurement meetings reflects a strategic adaptation by South Korean citizens to the dual pressures of increasing demographic isolation and the rising cost of essential commodities.

Vocabulary Learning

consecutive (adj.)
following one after another without interruption連續的；不斷的
Example:This is the fifth consecutive year that inflation has exceeded the general CPI.
logistical (adj.)
concerning the planning and execution of complex operations物流的；後勤的
Example:The meetings involve logistical requirements such as transportation and scheduling.
macroeconomic (adj.)
relating to the overall economy of a country or region宏觀經濟的
Example:Macroeconomic indicators suggest a heightened financial burden regarding essential goods.
necessities (n.)
things that are essential or indispensable必需品
Example:The CPI for living necessities rose by 2.4%.
prevalence (n.)
frequency or commonness of something普及率；盛行率
Example:The prevalence of single-person households has surged in recent years.

Sentence Learning

The phenomenon of 'sobun' meetings involves the organization of strangers via digital platforms, such as the Karrot application, to divide the cost and quantity of items that exceed the requirements of a single consumer.
Relative Clause: The clause 'that exceed the requirements of a single consumer' modifies 'items', illustrating how relative clauses can embed additional information about a noun.關係子句: 句子 'that exceed the requirements of a single consumer' 修飾 'items'，展示關係子句如何為名詞提供額外資訊。
These arrangements encompass a variety of goods, ranging from floral arrangements to specific food brands like Yupdduk, where the minimum serving sizes are designed for multiple persons.
Participial Phrase: The phrase 'ranging from floral arrangements to specific food brands like Yupdduk' functions as a participial modifier, adding detail about the 'variety of goods'.分詞短語: 片語 'ranging from floral arrangements to specific food brands like Yupdduk' 作為分詞修飾語，補充說明 'variety of goods' 的範圍。
In 2025, the consumer price index (CPI) for 144 government-designated living necessities rose by 2.4%, surpassing the general CPI increase of 2.1%.
Prepositional Phrase Fronting: The prepositional phrase 'In 2025' is fronted to set the temporal context before the main clause, a common stylistic device for emphasis.前置介係詞短語: 介係詞短語 'In 2025' 被置於句首以設定時間背景，強調語句。
Demographic distribution shows that the highest proportion of these households consists of individuals aged 70 and above (19.8%), followed by those aged 29 and below (17.8%) and those between 30 and 39 (17.4%).
Complex Noun Phrase: The noun phrase 'the highest proportion of these households' contains a prepositional phrase and a relative clause, illustrating the hierarchical structure of noun phrases.複雜名詞短語: 名詞短語 'the highest proportion of these households' 包含介係詞短語和關係子句，展示名詞短語的層次結構。
This represents the fifth consecutive year in which the inflation rate for essential necessities has exceeded the overall CPI, suggesting that the actual cost of living for basic requirements is increasing at a rate higher than the general economic average.
Participial Clause: The participial clause 'suggesting that the actual cost of living ...' provides an additional comment on the preceding statement, functioning as a modifier of the entire sentence.分詞子句: 分詞子句 'suggesting that the actual cost of living ...' 為前述陳述提供補充說明，作為整句的修飾語。