Welcome to my space for notes and sharing.
Joyce Ma — journalist | founder | lifelong learner.
This website is written, edited and published by AI, and the English edition is translated from Chinese by AI. Skills may not fit every case — always have your own AI check them.
Pre-class prep and after-class notes from Harvard Business School's OPM program: before each class I read the case, answer the professor's questions and write down my thinking. 75 articles, newest first.
2026
- HBS NotesMarketing: Das's Unit 3 Wrap-UpA promise takes the whole organization to keep
- HBS PrepLeadership: MudoWhat kind of empowerment does a transformation need
- HBS PrepLeadership: Jean-Claude BiverGiving an old craft new meaning
- HBS PrepOperations: Shohei OhtaniBringing ambition into every day
- HBS PrepOperations: AI-First SnackCount checking as part of efficiency
- HBS PrepNegotiation: Thirteen DaysLeave the other side a way to follow through
- HBS PrepMarketing: Starbucks KoreaWho Actually Read That Copy?
- HBS PrepManagement Control: A Letter from PrisonTime is part of the facts too
- HBS PrepStrategy: Golden GooseHow to grow without losing the brand's reason for being
- HBS PrepStrategy: BreezmHow customization becomes a repeatable business
- HBS PrepLeadership: UnspeakableSaying clearly the things that are hard to talk about
- HBS PrepFinance: Mercado BitcoinWhat kind of shareholders does growth need?
- HBS PrepFinance: GeBBSWho takes the helm after you sell the equity
- HBS PrepGlobal Markets: Equity GroupHow much public responsibility can a company take on?
- HBS NotesFinance: Nantucket NectarsValuation starts with asking who the buyer is
- HBS PrepLeadership: Lisa Su and AMDFocus and delivery in a crisis
- HBS PrepFinance: Slater & GordonWhat kind of capital growth needs
- HBS PrepGlobal Markets: IndiaHow development can reach the many
- HBS PrepControl: Lehman BrothersWhy paper compliance couldn't stop the window dressing
- HBS PrepStrategy: KLog.coShould growth go deep first, or go wide first?
- HBS PrepGlobal Markets: The Atlantic and OpenAIShould content be sold to the models?
- HBS PrepGlobal Markets: Taiwan SemiconductorsIs the silicon shield a protection or a weak spot?
- HBS PrepOperations: Commerce BankService is designed
- HBS PrepFinance: Spyder Active SportsHow ownership changes value
- HBS PrepMarketing: EquitableShould everyone adopt the new way of working?
- HBS PrepInnovation: Now Is the Time for CourageCourage is a skill you can practice
- HBS PrepStrategy: Axel SpringerIn the middle of a transformation, choose the acquisition target that fits you
- HBS PrepInnovation Case: Roaring Out of RecessionIn a recession, the fastest to cut jobs lose the most; save on process and spend on customers to expand against the wind
- HBS PrepFinance Case: Nantucket NectarsA company is worth the most in the year someone else needs you; don't wait for the year you need cash to sell
- HBS NotesMarketing Case: OlayThe promise can change; condescension can't stay
- HBS PrepMarketing Case: Bajaj FinanceHaving won the sale, guard the dangerous gap between one purchase and the next
- HBS PrepLeadership Case: Cynthia Carroll at Anglo AmericanWhen everything has been said, only a decision that costs you something is believed, even shutting down your own mine
- HBS PrepMarketing Case: BeldenMake the risky leap from selling parts to selling solutions while profits are still rising
- HBS NotesMarketing Case: OlayHow did a US$2 billion brand get cut in half?
- HBS NotesWhat Makes a Leader
2025
- HBS NotesFamily Business Succession Case: Sam Steinberg (Part 2)Why do family businesses always lose just when they're winning?
- HBS NotesFamily Business Succession Case: Sam Steinberg (Part 1)From business pioneer to succession impasse
- HBS NotesLeadership CaseLessons from C&S's Self-Managed Teams
- HBS NotesFinance Case: What First Aid Beauty Teaches Us About the Delicate Balance Between Investors and Control
- HBS NotesStrategy CaseHow should Alphabet do diversification?
- HBS NotesOperations Management Case: Zara's Supply ChainFrom "Low-Hanging Fruit" to Managing Uncertainty
- HBS NotesLeadership Case: Designing the Future of Work (Distributed Work)
- HBS NotesLook at Us! Harvard Business School's First-Ever Labubu Party
- HBS NotesMacroeconomicsThe "social contract," as seen from Singapore
- HBS NotesHBS Classmates Unbox Labubu Blind Boxes
- Opening of the Labubu Party
- Labubu Party (3): From Singing and Dancing to Pandemonium
- HBS NotesPinkerton: Entrepreneurship and Doing the Math
- HBS NotesNokia: The Risky Leap at the Tail End of a Company's Life
- HBS NotesLululemon: The Mindset and the Playbook for a Company in Its Scale-Up Years
- HBS NotesDanaher: How to Squeeze the Value Out of a Mature Business
- HBS NotesBBBK: Excellence Is a Race of Its Own
- HBS NotesOn Longevity
- HBS NotesLeadershipRon Johnson: A Career in Retail
- HBS NotesNegotiationsFairstar Heavy Transport
- HBS NotesThe Friends Who Help Me Grow
- HBS NotesIntro to StrategyThe Disney Case
- HBS NotesCrisis Management: Operational LeadershipFedEx Cyberattack
- HBS NotesOperational Leadership: From Founder → Scaling → Professional Managers
- HBS NotesControlCiti Bank & Swedish Match
- HBS NotesPurpose Driven Leadership
- HBS NotesBuilding Competitive Advantage through Operations
- HBS NotesA Classic Case of Build to Sell