Why price-matching algorithms quietly destroy retail margins — and how to fix them

·1 views

A widespread flaw in retail pricing software occurs when systems blindly match competitor prices without accounting for context such as stock availability, coupons, shipping costs, or temporary promotions. This creates a race-to-the-bottom loop where a single clearance-sale price can permanently anchor market pricing across multiple retailers. Developers are advised to model competitor prices as structured data bundles — capturing checkout price, shipping, promo labels, stock status, and delivery time — rather than storing a single price field. Before applying any price change, systems should enforce business rules that protect minimum margins and filter out non-comparable offers. Reliable data extraction is also highlighted as critical to pricing correctness, since missed coupons or failed scrapes feed false market signals into the pricing engine.

Read the full story at DEV Community

This is an AI-generated summary. ShortSingh links to the original source for the complete article.

Discussion (0)

Hamming's Logical vs Psychological Novelty Reframed as Basis Vectors and Coefficients

A developer and writer revisited Richard Hamming's distinction between logical novelty and psychological novelty, drawn from Hamming's book 'The Art of Doing Science and Engineering.' Psychological novelty refers to ideas new to an individual but already reachable within existing knowledge, while logical novelty would mean expanding the underlying space of possible ideas itself. The author reframes this using linear algebra: psychological novelty is a new coefficient vector, a fresh mix of existing directions, whereas logical novelty would require an entirely new basis vector. This maps onto a two-tier storage model borrowed from algorithmic information theory, where generators like axioms are stored cheaply and their outputs reproduced on demand. The essay ultimately questions whether true logical novelty, expanding the space rather than exploring it, ever genuinely occurs.

0 comments Read more at DEV Community

ProgrammingDEV Community ·

Web Chat vs. Runtime Harness: Why AI Coding Tools Are Not Interchangeable

Developers using web-based AI chat tools like Claude.ai or ChatGPT to write code face a fundamental limitation: the model generates text about a codebase it cannot actually see or execute. Unlike runtime-connected tools such as Claude Code or Aider, web chat cannot read the live file tree, run project-specific commands, or verify that generated code works against the real environment. This creates an 'interface gap' where code appears finished in chat but fails when pulled into an actual working repository — broken migrations, untested units, and port conflicts surface only after the fact. Research cited in the article shows the same underlying AI model can jump from outside the top 30 to top 5 on coding benchmarks simply by changing the surrounding harness, not the model itself. The key distinction is whether the AI is embedded in a loop that can read, edit, test, and self-correct within the actual project — web chat, by design, cannot do this.

0 comments Read more at DEV Community

ProgrammingDEV Community ·

Tutorial: How to Search Google Jobs in Real-Time Using Go and SerpApi

A developer has published a tutorial demonstrating how to fetch Google Jobs listings in real-time using the Go programming language and SerpApi. The guide is aimed at developers looking to automate job data retrieval without manual scraping. Topics covered include setting up SerpApi, querying job listings, parsing results into JSON, and deploying the API to the cloud. The full tutorial is available on the author's blog, with accompanying source code hosted on GitHub.

0 comments Read more at DEV Community

ProgrammingDEV Community ·

TipoffWatch and GenreWatch Add Universal Copy URL Button After Long-Standing Gap

Streaming platforms TipoffWatch, GenreWatch, and WatchNews have added a Copy URL button alongside existing player controls, addressing a gap that went unnoticed for months. Previously, device-specific buttons — VLC and Infuse deep links for mobile, and an M3U download for desktop — meant no single option worked across all devices, and the raw stream URL was never directly accessible. The new button appears in four locations: channel rows, the inline player, multiview grid tiles, and channel pages, making it easier to open streams in unsupported players like mpv, ffmpeg, or Plex. For security, the button is restricted to rows where the user owns the credential, mirroring the existing rules applied to VLC and Infuse buttons. Grid tiles fetch the stream address on demand via a session-authenticated route rather than embedding it in markup, preventing credentials from leaking through bookmarks or picture-in-picture links.

0 comments Read more at DEV Community