KDI 한국개발연구원 - 경제정책정보 - 국내외연구자료 주제 - 정보과학 - 정보통신 -

본문

경제정책정보

유관기관의 다양한 자료를 한 곳에서 살펴보실 수 있습니다.

세미나

Blockchain Economics

CEPR 2019.04.19
페이스북
When is record-keeping better arranged through a blockchain than through a traditional centralized intermediary? The ideal qualities of any record-keeping system are (i) correctness, (ii) decentralization, and (iii) cost efficiency. We point out a \textit{blockchain trilemma}: no ledger can satisfy all three properties simultaneously. A centralized record-keeper extracts rents due to its monopoly on the ledger. Its franchise value dynamically incentivizes correct reporting. Blockchains drive down rents by allowing for free entry of record-keepers and portability of information to competing "forks.'' Blockchains must therefore provide static incentives for correctness through computationally expensive proof-of-work algorithms and permit record-keepers to roll back history in order to undo fraudulent reports. While blockchains can keep track of ownership transfers, enforcement of possession rights is often better complemented by centralized record-keeping.

가입하신 이동통신사의 요금제에 따라
데이터 요금이 과다하게 부가될 수 있습니다.

파일을 다운로드하시겠습니까?
KDI 연구 카테고리
상세검색