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This week we dive deep into the economics of cryptocurrencies, proof of stake scenarios, and Polkadot's application of security, interoperability and token economics. Joe Petrowski (Research Analyst, Parity Technologies) speaks with Stefanie von Jan, an economics lecturer at the FOM University of Applied Sciences for Economics and Management in Munich, Germany. Her interests in Austrian economics, Blockchain technology, and token economics led to her providing her expertise with founders and academics, and now shares her latest insights about Bitcoin and Polkadot with us. Links: Polkadot: Shared security or Single point of failure? (https://medium.com/blockkore/polkadot-shared-security-or-single-point-of-failure-d34550f74eb1) Medium Blog from Stefanie von Jan (https://medium.com/@stefanievonjan) Highlights: 02:15 - What makes blockchain economics unique? 03:50 - The Bitcoin token model 06:05 - A Keynesian cryptoeconomic model? 07:43 - Proof of Work vs. Proof of Stake 11:16 - How do we measure the value of a decentralized protocol? 13:42 - Are tokens tied to the value they intend to provide? 16:20 - Value competition of protocols and the applications on them 22:20 - What do Proof-of-Stake attack scenarios look like? 25:12 - Token security for Polkadot parachains 31:20 - The governance of parachain tokens 34:15 - Sound rule systems for parachains Special Guest: Stefanie von Jan.