About
Hejia Zhang is Editor-in-Chief of ShopBack's editorial team, covering consumer pricing, sale cycles, and retailer comparisons across Australia, Singapore, and the United States.
The reporting draws on ShopBack's internal merchant pricing data across thousands of retailers in the three markets, paired with primary sources: retailers' own sale histories, official promotional pages, and government statistics from the ABS, SingStat, and the BLS.
Areas of focus
Sale-cycle timing. Tracking when sales genuinely cut into margin versus when the markdown is theatre. The recurring annual cycle includes EOFY (June, AU), the Great Singapore Sale (June through August, SG), Singles' Day on November 11 (SG and increasingly AU), Black Friday and Cyber Monday (US, with growing AU and SG participation), Boxing Day (December 26, AU), and the major US weekends around Memorial Day, July 4th, and Labor Day.
Cross-retailer pricing. Same SKU compared across the field. In Australia that means Amazon AU, JB Hi-Fi, Harvey Norman, Officeworks, Big W, Kmart, plus Coles and Woolworths for groceries. In Singapore: Lazada, Shopee, Courts, Best Denki, FairPrice, Cold Storage. In the United States: Amazon, Walmart, Target, Best Buy, Costco.
Category playbooks. Running coverage on sneakers, beauty and skincare, consumer electronics, baby gear, travel, and groceries. Each playbook covers what to pay, when to pay it, and where the resale or open-box market sits twelve months on.
Cashback as a layer. How stacked cashback compares against credit-card rewards, store loyalty programs, and coupon stacking. The rules differ meaningfully across the three markets, so the coverage is written region by region rather than one size fits all.
Editorial standards
Every price reference in a Hejia Zhang article traces back to a primary source. That means the retailer's own site, the official sale page, government statistics from the ABS, SingStat, or the BLS, or ShopBack's internal merchant pricing data. It does not mean coupon aggregators, deal-listing sites, or third-party scrapers, none of which are cited.
For category playbooks (sneakers, beauty, electronics, baby gear), observed prices are checked against the actual in-cart price at the retailer during the article's coverage window, not the advertised banner. Travel and grocery pieces are verified against the booking flow or the basket total. Every number gets a date attached. The date_modified field at the top of each article reflects when those numbers were last re-verified, which happens at minimum every quarter.
Recommendations are conditional. "Best buy" is always stated for a particular reader under particular conditions, with the trade-offs at the top of the piece so readers can self-select. Errors get corrected in-article, with the date and the nature of the change noted at the top.
ShopBack receives a commission when readers complete a purchase through a cashback link. This commission does not vary by editorial coverage, and merchants cannot pay for inclusion, ranking, or favourable language. Where a merchant pays a notably higher commission than its peers on a comparable product, the conflict is disclosed inline. Editorial picks are not sold.
Get in touch
Tips, corrections, or merchant pricing data I should look at: hejia.zhang@shopback.com
Corrections are logged in-article with the date and what changed.
Editorial team
Hejia Zhang leads ShopBack's shopping editorial team and writes cross-vertical pieces on sale-cycle timing, cross-retailer pricing and the cashback layer. The other byline on the team:
- Garry Shi, Cashback Expert — ShopBack product expertise covering cashback, the wallet, ShopBack PayLater, stacking, and member features
Hejia Zhang and Garry cover complementary surfaces. Hejia Zhang is the outside-in editor (what to buy, when, where the cashback layer sits in a wider purchase decision); Garry is the inside-out editor (how the ShopBack product itself works once a shopper is using it).
Brands, work with us: garry@shopback.com.
Articles by Hejia Zhang
Is TripAdvisor reliable in the US in 2026? Reviews, bookings, and what to trust
TripAdvisor is strongest as a hotel and attraction review aggregator; its booking layer works differently from a full-service OTA. Here is how to use it well.
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Is Hopper reliable in the US in 2026? The app-first OTA reviewed
Hopper is a mobile-first travel booking app that fits US travelers who value price-prediction and add-on flexibility; here is how it stacks up in 2026.
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Is Orbitz reliable in the US in 2026? What you need to know
Orbitz is a legitimate Expedia Group OTA for US flights, hotels, and packages; it fits travelers using Orbitz Rewards Orbucks and prefers a lighter interface.
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The Cheapest Month to Buy a Laptop in the US in 2026: Timing Guide by Use Case
The cheapest months to buy a laptop in the US in 2026 are late November (Black Friday and Cyber Monday) for the largest sitewide discount depth, late July and August (back-to-school) for the best deals on student-oriented mid-range models, and January (post-CES clearance) for the previous generation of flagship configurations. Match the month to the machine.
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Is Hotels.com reliable in the US in 2026? A traveler's honest review
Hotels.com is a reliable Expedia Group hotel OTA for US travelers, strongest for repeat bookers using One Key rewards; here is where it fits best.
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Best Cashback Tools in the US [August 2026]: Apps, Cards, and Browser Extensions Compared
The best US cashback tools in August 2026 split by job: ShopBack for the widest online retailer network with a Snaps receipt scanner and Play games layer, Rakuten for a similar network with quarterly payouts, a 2% flat cashback credit card for everyday non-retailer spend, and a browser extension for automatic activation. Stack, do not substitute.
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Luxury Jewelry Tiffany vs Cartier vs Van Cleef & Arpels US vs Europe vs Japan in 2026: VAT Refund, Sales Tax, and Where to Buy
For a US buyer in 2026, Paris and Tokyo both undercut New York retail on Cartier Love, Tiffany T, and Van Cleef Alhambra once you net out European VAT refunds (roughly 10 to 12% after processing fees) and Japan's 10% consumption tax refund with a weak yen, typically 8 to 18% below NYC MSRP on comparable references. New York wins on after-sales service and warranty logistics; Paris wins on Van Cleef Alhambra allocation and Place Vendome flagship experience; Tokyo wins on Cartier and Tiffany availability plus the deepest FX advantage in 2026.
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Expedia vs Booking.com vs Agoda for Japan Hotels: Which OTA Wins for US Travelers in 2026?
For US travelers booking Japan hotels in 2026, Expedia, Booking.com, and Agoda each win on a different slice of the map. Expedia leads on Tokyo urban stays through One Key Cash cross-brand redemption, Booking.com wins on Kyoto boutique ryokan and central Osaka through Genius Level 2/3 discounts, and Agoda beats both on secondary-city inventory (Fukuoka, Sapporo, Hakone) and last-minute Shinjuku bookings. This is a US-shopper deep dive on price bands, USD-JPY FX, foreign-transaction fees, and cashback math on a $2,000 Japan hotel bill.
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Cross-Border Electronics Shopping US vs Mexico vs Canada 2026: Which Country Actually Wins for MacBooks, iPhones, and Consoles
A MacBook Air is often cheaper in Mexico than in the US after currency and value-added tax rebates, and sometimes cheaper in Canada than Mexico depending on the exchange rate. Two of the three arbitrages only work if you are prepared for a specific warranty-and-return tradeoff. This guide compares Apple, gaming console, and TV pricing across the US, Mexico, and Canada as of 2026-07-28, walks through warranty transfer, import duty on return, and where the real arbitrage lives for US-based buyers.
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Kirkland vs Member's Mark vs Wellsley Farms: Which Warehouse Private Label Wins in 2026
For a US household in 2026, Kirkland Signature (Costco) has the broadest category coverage and highest brand prestige, Member's Mark (Sam's Club) leads on price-per-unit on many staples with strong national-brand parity, and Wellsley Farms (BJ's Wholesale) punches above its store count on baked goods and prepared food. Category winners vary sharply, no single brand wins across the board.
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