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 Kayak a Reliable Booking Site? A 2026 US Flyer Review of Kayak vs OTA-Direct
Kayak is reliable as a price-discovery tool and inconsistent as a booking endpoint. It is a meta-search engine owned by Booking Holdings, not a travel agency, so the booking itself happens with the airline or OTA you get redirected to. For US flyers in 2026, treat Kayak as a research surface, then book on the destination site after a fresh price check. Worked example: LAX to LHR on Virgin Atlantic main cabin, with USD pricing on Kayak vs Expedia vs the airline.
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Vrbo vs Airbnb in 2026: Which Vacation Rental Platform Actually Wins for US Travelers?
Vrbo and Airbnb look identical on the surface and often list the same beach houses. The Whole-Home Pick Test sorts which platform actually wins for US travelers in 2026 based on trip type, group size, and total all-in price.
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Is Expedia Cheaper Than Booking Through the Airline? A 2026 Decision Framework for US Flyers
Expedia is cheaper on roughly 30 to 40 percent of US route searches, mostly on international itineraries and flight-plus-hotel packages. Direct is cheaper on domestic routes where airlines run member-only fares, and direct is almost always the safer choice when cancellations, changes, or loyalty miles matter.
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Best Site for Cheap Flights in 2026: A US Flyer Site-Picker by Trip Type
Which flight site is actually cheapest for a US flyer in 2026 depends on the trip type, not on one master site. A working framework for domestic, international, and ultra-cheap deal flying, with worked USD examples on JFK to LAX, ORD to MIA, and LAX to LHR, plus how to stack cashback on Expedia, Hotels.com, Booking.com, Kayak, and Priceline through ShopBack.
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Best US Airline Credit Cards in 2026: Delta, United, American, Alaska, Southwest Compared
For US flyers in 2026, the best airline credit card depends on where you live and how you travel. Delta Reserve and United Club win for lounge-chasing road warriors, the Citi AAdvantage Platinum Select and United Explorer are the best mid-tier value, Alaska Visa is the most card for $95, and the Southwest Priority plus a strategic Companion Pass run is the strongest family-of-four play in US airline credit cards.
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Cost of Medical Care Without Insurance in the US 2026: ER, Urgent Care, Primary Care, and Prescriptions Priced Honestly
Without insurance in the US in 2026, a typical emergency room visit runs $1,200 to $3,500, urgent care is $150 to $250, a primary care visit is $150 to $300, telehealth is $50 to $80, and a retail clinic is $99 to $139. Most non-emergencies belong at urgent care, telehealth, or a retail clinic rather than the ER. For prescriptions, ask for the cash price, compare GoodRx, Costco Pharmacy, and Mark Cuban's CostPlus Drugs before paying retail; generics often drop to $4 to $15.
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Delta SkyMiles vs United MileagePlus vs AA AAdvantage 2026
For US flyers in 2026, Delta SkyMiles is the strongest operational program (best on-time performance and elite recognition) but uses dynamic award pricing with no published award chart, United MileagePlus has the most predictable partner award redemptions and Star Alliance global reach, and American AAdvantage is the easiest entry to status thanks to its Loyalty Points system that counts credit card spend. Pick your program based on your home airport, not the chart.
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Ryokan vs Hotel in Japan for US First-Timers in 2026: How to Pick and Where
Ryokan or hotel for your Japan stay as a US first-timer? A practical comparison of cost in USD, dinner ritual, language barrier, and which option fits which night of a 14-day US Japan trip, with worked examples for Hakone, Kyoto, and Kinosaki Onsen.
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Chichen Itza Day Trip from Cancun in 2026: Coach Tour vs Private Driver vs Rental Car Compared
How should US travellers reach Chichen Itza from Cancun in 2026? A practical comparison of coach tours, private drivers, and self-drive rental cars on cost, timing, crowd avoidance, and cenote stops.
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Tokyo First or Osaka First? The Best Entry City for a 14-Day Japan Trip from the US in 2026
Should US travellers fly into Tokyo or Osaka first for a 14-day Japan trip? A practical comparison of flight options, jet-lag recovery, itinerary flow, and which entry city sets up a better trip for first-time visitors.
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