Changelog
Everything new or changed in Gyronomics, from launch to today. Only changes that affect visitors.
Each entry describes the state as it was on its own date. Figures and claims in older entries may have been corrected by newer ones - for the current picture see the data releases page. Data releases
Monthly pita-gyro price bulletin
- A new monthly pita-gyro price bulletin, modelled on a monthly CPI release: pages /deltio and /en/deltio, one issue a month.
- Monthly Pita-Gyro Price Index with September 2026 = 100, from each shop's change against itself.
- The September issue is the base month: the level in 78 cities and the 8 to 25 September pilot comparison, not an official rate.
- Next issue on 4 November 2026, working day 3. No email. The annual Index does not change.
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A monthly pita-gyro price bulletin, modelled on a monthly CPI release. New pages /deltio and /deltio/2026-09, in Greek and English. The Monthly Pita-Gyro Price Index has September 2026 = 100 as its base and is chained from each shop's change against itself, under the v2 rules. The first issue, September 2026, is the base month: index 100, with no official monthly change because there was no regular reading in August. It shows the level in 78 cities, with an exact 95% interval in 48 of them. It also shows the 8 to 25 September pilot comparison, clearly marked as not an official rate: +0.25%, 95% interval from +0.18% to +0.34%, on 1,588 pairs. The official comparison is Eurostat's HICP for August 2026: restaurants and cafés +0.1% on the month and 5.1% on the year. One issue a month, on working day 3 of the following month; the next one is on 4 November 2026. Issues come as JSON and CSV that never change after publication, each with its SHA-256. The API is at /api/public/bulletin.json, with a bilingual note for every field. The page prints without a PDF, and the city table runs on to the next page without leaving a blank one. Percent changes are rounded by one rule, half away from zero, the same in the bulletin and in the rate table of the prices page. No email. The annual Index does not change.
When the 2026 figure changes, and when each release went public
- 214 and EUR 4.30 hold while the September-December catering CPI mean stays at 5.30% or more. Below that the same rule gives EUR 4.25 and 216.
- versions.json gives each release a first_published field, the first recorded publication that served it.
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/api/public/versions.json now gives each version a first_published field: the build time (UTC) of the first recorded publication on gyronomics.gr that served this version or a later one. date stays the day the version was prepared. The difference shows in the four versions from 28.9 to 5.10. They were prepared on those days, but the first recorded publication that served them is the build of 6.10.2026 at 10:15 UTC. For older versions the field stays null, because the build times of their publications were not recorded, and no guess takes their place. A new version also shows null until its publication is in the register, that is, until the next publication. We now publish in advance when the 2026 headline changes. EUR 4.30 and 214 classic gyros hold while the annual catering CPI enters the series at 6.3% or more (the rule's threshold is 6.28%). With 8 months published, that means a September-December mean of at least 5.30%. If it comes in lower, the same rule gives EUR 4.25 and 216, and 2025 stays alone at 214. At 8.7% or more it would give EUR 4.35 and 211. The sentence is on the 2026 page and the thresholds are in year.json (provisional_basis.headline_band).
Gyros by government
- Wage, gyro price and gyros per month by government period, with a lag from 0 to 6 months, separately for the wage and the price.
- What happened by party, the euro era only, a map of wage lag times price lag, what survives under every version, a shareable image and sourced government dates.
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The new page shows how much the net minimum wage rose, how much the price of a classic gyro rose and how many gyros the wage buys per month, by consecutive government period and by party, from the same annual series as the Index. It is arithmetic, not evidence of cause: a government does not set the price or the wage alone, and which year belongs to which government is a choice. That is why the reader moves two settings: the way the years are assigned and a lag from 0 to 6 months, separately for the wage and for the price (the minimum wage is set by decision, the price reacts later), and whatever they choose stays in the link. The 6-month limit is a choice of the page and not a measurement: no source sets how much lag policies have in Greece. It started at 24 months and came down the same day to 9 and then to 6, on the user's instruction. The lag is not removed to get a clean conclusion. Instead the page tries both ways at every combination of wage lag and price lag, with a 7 by 7 map, and shows what survives: of the 9 comparisons 7 hold under all versions, and in gyros per month PASOK comes out above ND in all of them. That holds inside the 6-month limit only, and the page says so at the top: a conclusion that holds inside the limit does not say what holds outside it. The reader also sets a lag rectangle (wage times price) they consider plausible, and the page recomputes the verdicts inside it. For each period the page also shows how much the price rests on interpolation, and the 2012 minimum-wage cut applies from a date when a different government was in office from the one the 30 June rule gives it to. Government dates come from the Wikipedia list of prime ministers, with the raw file and its SHA-256 in the repo and a check in the build. The page also has a button to copy a link, its own sharing card and a shareable image (Greek and English, PNG and SVG), a method section and CSV/JSON downloads. The page does not give a “what would have happened”. It shows what happened (an accounting by party, an identity that does not say the party caused it), what happens inside one currency (the euro era only, with a small-sample mark for parties with few years) and the fifty-year extrapolation only as a range, stated not to be a forecast. In the euro era the ND and PASOK result in gyros is not the same as that of the whole series. The series and the calculations do not change.
GYRO/EUR: the gyro as a currency
- Three pairs in a ticker format: the price of a classic gyro, gyro per euro, and the wage in gyros.
- Range, logarithmic scale, price-bounds band, statistics, a table and downloads.
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The new GYRO/EUR page shows the euro price of a classic gyro, its inverse and the wage Index, from the same annual series as the Index. Choose a pair and a range (5, 10, 25 years or the full series), a linear or logarithmic scale and, for the price, a band of the published bounds. Beside the chart are the change, the compound annual rate, the high, the low and the maximum drawdown. Points are annual, so there are no candlesticks, volume or volatility, and no forecast. The open year is drawn dashed. The page explains why the “all-time high” is nominal: part of the increase is general inflation. Selections stay in the link and across a language switch, and the table and the CSV/JSON downloads give every annual value with its bounds. The series and the calculations do not change.
The economy in gyros
- 14 official measures: GDP, debt, income, consumption, investment and public finances.
- Year and unit selection, history, bounds, quarterly debt and downloads.
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The new Gross Domestic Pita page shows annual observations for 2000–2025 in euro and gyro equivalents, including per-resident measures. Each measure carries its definition, period and source. Household income for 2025 remains unavailable and historical price estimates retain their bounds. Separate quarterly debt uses a fixed 2025 reference price without claiming a measured quarterly gyro price. An interactive example shows why a higher gyro price reduces equivalents without debt repayment and leaves debt/GDP unchanged. Selections persist in links and language changes. JSON, CSV and the original data from six Eurostat sources are published with integrity hashes. The headline Index series is unchanged.
Pita or sandwich, again: the regular measurement across 1,654 menus
- A new article on the naming border in the regular September measurement.
- A new short edition of the book on the corrected series: 12 years change by 1-2 gyros (2012 from 338 to 336), 2026 stays at 214, the mean wage comes from the OECD and the median runs from 2010.
- A 61-city map and a minimum-sample rule for price comparisons.
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NEW ARTICLE: “Pita or sandwich, again: the regular measurement across 1,654 menus”. The naming border in the regular 25 September measurement: sandwich is the majority name in 13 cities (12 in the pilot), Thessaloniki has 115 of 127, without the word 311 of 1,654 would lose their price, and the map has 61 cities, the 10 new ones with coordinates from two sources. New sample rule: the two names' prices are compared only with 4 or more shops each. We state openly that the 7 September article put Ioannina at zero while it was 1 of 34 (now 3 of 49). The 7 September article stays as published, and the two link to each other. NEW SHORT EDITION OF THE BOOK: “One wage, how many gyros?” dated 26 September 2026, 32 pages per language, on the frozen 2026.09.26-mean-wage-source dataset. It includes the sourced 1993-2019 contribution rates by period. The classic index changes in 12 years by 1-2 gyros, e.g. 2011 from 417 to 416 and 2012 from 338 to 336, and the 2012 wage fall is now 18.0% instead of 17.7%. 2026 stays at 214 gyros. The mean wage now comes from the OECD (Taxing Wages), as on the site: 973 gyros in 2000 and 467 in 2025, instead of 971 and 522 with Eurostat earn_nt_net. The median keeps its five SES points: 2006 is shown as an open point (NACE Rev. 1.1) and 2022 is flagged as a new method. The change in the text and in Table 6 now runs 2010-2022, from 930 to 548 gyros, instead of 2006-2022 (966 to 548). The book computes percentage changes from the integer indices, so they can differ from the site by 0.1 point (mean −52.0% against −51.9%). A new edition note on page 2 is generated from the data. The 21 and 25 September editions remain at their addresses.
Gyronomics in 32 pages
- A short book with six chapters, charts, tables and inline sources, in both languages.
- Choose the short or full edition from Data, the homepage or the footer.
- A dedicated book page in navigation and search, with a cover preview, chapter links and edition sharing.
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The new short edition tells the index story from beginning to end, with nine charts, nine tables and twelve bibliography entries. Data now offers two clear choices: the short edition for a first read and the full edition for every article and the documentation. Each has PDF reading and download buttons, page count, size and date. The homepage and footer lead to the chooser. Downloads work without JavaScript. The complete short-edition source package is available as a ZIP. The book preserves the dated 2026.09.19-book series, while the full edition was regenerated from the updated content. Economic figures and index calculations are unchanged. The dedicated /book and /en/book page is now included in navigation and search. It shows the actual short-edition cover and chapter titles, linking to the corresponding PDF pages. Each edition has its own share link, preserved when switching language. Existing Data links remain usable.
New page: the pita gyro rating, CCC with a negative outlook
- The Index Book: thematic chapters, every article, tables and sources in PDF.
- New rating page: the Index in letters, with the boundaries printed.
- Today CCC with a negative outlook: 218 gyros a month, three-year change -16.8%.
- The worst band in 51 years, since 2024. Only 1983 stands at the top.
- 16 actions since 1976, with the move in gyros beside each one.
- With bands of 40 or 60 the letter changes, the ranking does not.
- It is not a credit rating: no state, no debt, no forecast.
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Rating agencies give a letter and an outlook, and everyone understands immediately what it means. The new rating page does the same for the Index, with one difference that is also its reason for existing: the letters add NO information. They are the band the published number falls into, the boundaries are printed, and anyone who dislikes letters can read the number and lose nothing. No weighting, no hidden factors, no committee. Today the net minimum wage buys 218 classic pita gyros a month, which falls in band CCC, and the three years 2023 to 2026 give -16.8%, so the outlook is negative. It is the worst band in the 51 years of the series, first reached in 2024. One year alone stands at the top, 1983, with 511 gyros. The bands are round numbers in the natural unit, every 50 gyros, rather than shares of some peak: a scale anchored on the peak would rewrite history every time a record fell, and one anchored on zero would flatter the present, because zero is never approached. The page also gives the full history: 16 actions since 1976, with the move in gyros beside each one, so that events can be told apart from a boundary merely being crossed. The largest annual fall is 2012, from 414 to 322 gyros. The largest rise is 1982, with 103 more. Because the width of a band is a convention and a convention is not allowed to produce the conclusion, the page shows what happens with bands of 40 and 60 gyros: the letter changes, to C and B respectively, but under every width today stands on the worst band ever reached and 1983 stands alone at the top. And plainly, high up rather than in the small print: this is not a credit rating. It has nothing to do with the Greek state, with debt, and it forecasts nothing. One quantity is graded, how many pita gyros a wage buys. The Index Book collects the core chapters, every article, tables and sources in edited Greek and English PDF editions. It includes linked contents, bookmarks and an edition date. Downloads are available on Data and in the footer. Interactive tools remain on the website. An integrity check binds the files to the content edition. A link to the Gyronomics community on Reddit was also added to the footer.
New page: how many litres of fuel the minimum wage buys
- New "Fuels" page: litres per month on the same wage, 2005-2026.
- 2005-2025: pita gyro -47.1%, heating oil -28.2%, petrol -20.1%, diesel -10.0%.
- The gyro ran faster than every fuel. The Index is not a cost-of-living measure.
- Heating oil on heating months only: out of season it carries the automotive excise.
- Before 2005 there is no price and none is invented; the current year is partial.
- New crisis page: five goods with 2011 set to 100, before the minimum wage was cut.
- Petrol 115 and diesel 116, above 2011. The pita gyro at 52, with its trough in 2025.
- Two crises: the fuels bottom out in austerity, electricity in 2022, the gyro now.
- The 2012 drop is one event: the minimum wage cut by 20.8%, a common numerator.
- Across bases 2008 to 2011 the levels move, the structure does not. The trough stays 2025.
- Electricity is asterisked where the two official sources disagree, not chosen silently.
- The current year enters dashed: inside 2026 the fuels fall back again.
- In euros: the 414 gyros of 2011 would need a wage of 1,759.50 instead of 924.46.
- Why the lines separate: wage +22.0%, petrol +5.7%, pita gyro +133.8%.
- The 2026 mean is not the current price: petrol 109 on the mean, 98 on the last week.
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A new "Fuels" page. The same wage the Index runs, on a different good: how many litres of petrol, automotive diesel and heating oil the net minimum wage buys per month, from 2005 to today. Prices are weekly pump prices including taxes from the European Commission's oil bulletin. The finding is an uncomfortable one, which is why it is worth publishing: between 2005 and 2025 the wage lost 47.1% of its purchasing power in pita gyros, but 28.2% in heating oil, 20.1% in petrol and 10.0% in automotive diesel. The gyro ran faster than every fuel, which means the Index is not a stand-in for the cost of living and that goods are not chosen to flatter a story. Heating oil is measured on heating months only, October to April, and the reason is not cosmetic: out of season the product carries the automotive excise, and in 2005 its summer price equals the automotive price exactly. On an all-week annual mean the fall came out as 6.3% instead of 28.2%. Before 2005 this source has no price and none is invented; the current year is partial, drawn dashed, and excluded from the changes. The published Index does not change. A second page arrived with it. The crisis page sets five goods side by side on the same wage: pita gyro, petrol, automotive diesel, heating oil and electricity. The base is 2011 at 100, the last full year before the minimum wage was cut, and the reason is not a political date but that the wage is the numerator of every line. All five fell, but four found a bottom and came back: petrol now stands at 115 and automotive diesel at 116, above 2011, heating oil at 94 and electricity at 65. The lowest point for the pita gyro is 2025, which is now, and it stands at 52: the same wage buys half of what it bought in 2011. The troughs do not fall in the same year, and there it shows that this is not one crisis but two. The fuels bottom out in 2012 and 2013, during austerity. Electricity in 2022, in the energy crisis. The gyro now. The drop all five lines share in 2012 is not five price stories but one: the minimum wage was cut by 20.8% and the wage is a common numerator. The page decomposes it through an identity, quantity equals wage over price, with no remainder left: the gyro fell 22.2% with its own price moving just 1.9%, while heating oil fell 37.6% because its price rose 27.0% within one year. Because a base year is an argument, every other starting year the data allows is tried, 2008 through 2011: the levels move a great deal, petrol landing anywhere from 73 to 115, but the structure does not move at all. Under every base the trough for the gyro is 2025 and its recovery is zero, and a test pins that so the base cannot become a hidden argument. Electricity carries an asterisk on 2022 and 2023, where two official sources report different changes, 24.2% against 43.1% and 2.1% against -15.0%. The conclusion does not hang on it: electricity is one of four comparators. The chart runs to the current year with the open part drawn dashed, because otherwise it would end on the best fuel year and imply a climb that has already stopped: inside 2026 petrol drops from 115 to 109 and diesel from 116 to 103. The open year is drawn, not measured, and enters no trough, recovery or table. Heating oil does not get it at all: measured on heating months only, its open year holds the January-April leg alone, and across closed years the two legs of the season sit between -15.4% and +42.9% apart. Electricity comes from a half-yearly series whose 2026 has not been published. Every year of it downloads as CSV and JSON, and sits inside the page as well for anyone who does not download files. The finding is also given in euros, because an index of 52 hurts nobody: for the wage to buy the 414 pita gyros of 2011 at the current price it would have to be 1,759.50 euro net instead of 924.46. The same arithmetic gives 849.12 for petrol, which is less than the actual wage, and that is why all five goods are there: a page whose numbers were always frightening would deserve less trust than one whose arithmetic sometimes runs the other way. It now also says why the lines separate, through the same identity across the whole window: the wage rose 22.0% and is shared, so what distinguishes each good is its own price, from 5.7% for petrol to 133.8% for the pita gyro. Finally it says what would change the conclusion: the trough of the gyro sits one point away from the open 2026, and if that year closes where it stands, no recovery at all becomes a recovery of one point. The chart was rebuilt for the phone, where the page is read: every line ends with its name and its current value, so no legend is needed, not even in a screenshot. A reader question added something both pages were missing: the mean of an open year is NOT the current price. 2026 opened at 1.714 euro per litre of petrol and the last week in the bulletin, 14 September 2026, gives 2.158. The mean of 37 weeks puts petrol at 109, but on the last week alone it comes out at 98, already below 2011, and automotive diesel at 88 instead of 103. The lines keep the mean, because that is how every other year of them is measured, but the current price is now written beside it so the page does not appear to disagree with the sign on the forecourt. The pita gyro does not have this problem, and that is said too: its price for the open year is the price being measured now, not a mean of the months so far.
New page: how many pita gyros the mean and median wage buy
- New "Mean and median" page: the same index on three wages, one basis and one unit.
- 2000-2025: the mean loses 46.5% and the minimum 45.6%. The loss is not a minimum-wage story.
- 2006-2022: the median loses 43.2% against 36.1% for the minimum.
- Not a wage cut: wages roughly doubled while the price of a gyro nearly quadrupled.
- Inside the median: decile spread, sex, the under-30s, income tax, and a second-source check.
- Gaps stay gaps: the median has five points and the next is not expected before 2028.
- The published Index does not change: it remains the minimum wage.
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The Index measures the minimum wage, and the comment we heard most often was "fine, but I do not earn the minimum wage". The new "Mean and median" page answers it with a measurement. The same calculation runs on three wages, on one basis and in one unit: classic pita gyros per month, after employee contributions and before income tax. Between 2000 and 2025 the mean wage loses 46.5% of its purchasing power and the minimum 45.6%. Across the years with a measured median, 2006 to 2022, it loses 43.2% against 36.1% for the minimum. The loss is not a minimum-wage story. The reason shows when the index is split into its two parts: wages roughly doubled, but the price of a gyro nearly quadrupled. It is not a wage cut. The page also shows the spread between the poorest and richest tenth, what the figures say by sex and for the under-30s, how much income tax takes off, and a verification against a second independent source. Gaps stay gaps: before 2000 no such measurement exists for Greece, the median has only five points, and the next one is not expected before 2028. Nothing is interpolated or extended backwards. The published Index does not change: it remains the minimum wage.
Reproduce the selected export
- Four graphics from the series, in EL/EN, landscape and portrait, with PNG/SVG downloads.
- A companion JSON and standalone check for the selected CSV export.
- One ZIP with all replay files, plus personal-budget and Reverse JSON and PNG downloads.
- Restore inputs from JSON and save personal-wage and future-scenario calculations.
- Public research-gap JSON and shared selections/version handling across API and MCP.
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Selected exports optionally include a JSON companion identifying parameters, exact archived inputs and the CSV checksum. A standalone verifier checks the calculations and exported fields without private repository access. Success does not certify historical sources. The selected view also downloads as a ZIP containing CSV, companion JSON, archived data, verifier and instructions after checksum validation. Personal budgets and Reverse gain separate reproduction JSON and PNG images of the selected calculation. A standalone verifier recalculates every result. Reference prices identify their exact archive, while personal prices are labelled as assumptions. The guide explains download and offline execution. Files contain personal inputs and are saved only on the user’s request. The legacy personal JSON remains in a disclosure, with complete download and optional-delivery checks. Local reproduction JSON import now validates and previews a saved calculation before applying its inputs. Saved results remain distinct from a new calculation using current data. Personal wages and future scenarios gain JSON, PNG images and standalone verifiers. Exact wage basis, assumptions, horizon limits and previous archives are preserved. Incompatible or changed files do not alter current selections. Earlier application findings were reviewed and completed work was separated from open issues. The new gaps.json exposes the same register as the Gaps page. MCP reads that register, preserves scenario, starting year, unit and version, and explicitly returns errors instead of different data. Public endpoints share version headers, CORS and GET/HEAD/OPTIONS. Current data rejects old versions with HTTP 409 and continuation links, while historical archive lookup and existing payroll-research links remain supported. A guide on Data explains the distinct behavior of catalogues, archives and live checks. The Gyronomics in pictures collection joins Numbers & stories: the historical journey, wage and price from a common base, then and now, and a calculation explainer. Each topic has Greek and English editions with separate landscape and portrait compositions. Images use the same calculations as the pages and retain wage basis, assumptions, daily release, licence and immutable dataset link. PNG/SVG downloads work without JavaScript; embedded fonts retain their licences. Home shows three previews, while related articles, the two comparison-year pages, the Gap and methodology reuse the same files. Fixed comparisons are distinguished from interactive selections. The build checks SVG agreement with the series, checksums and actual deployment assets. Numerical data, methodology and existing archived datasets remain unchanged.
What does a year of pita gyros cost?
- Per-order delivery fees, independent frequency and a complete personal cost breakdown.
- New article with monthly and annual bills, illustrative scenarios and the personal calculator.
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A new bilingual article converts steady weekly frequency into monthly and annual spending. Copy, an accessible table and share images use the current era-price reference and the existing personal-budget calculator. Examples are explicitly hypothetical, holding price fixed and using the calculator’s week/month convention, without order-level charges. A hypothetical price difference is not presented as an observed increase. Direct links lead to the personal calculator and price evidence. The article is included automatically in the blog, related articles, EL/EN metadata and sitemap. Code-generated images have figure and fingerprint checks. The historical Index, wages and model assumptions remain unchanged. Consistency checks validate spending amounts against the declared scenarios only within this article, without accepting them as wages elsewhere. The personal calculator now accepts an optional per-order fee and independent order frequency. Wraps, delivery and totals are shown separately, with the full formula and JSON v2. Orders and fees stay fixed during price comparisons. Missing or invalid inputs cannot retain stale results, and clearing resets all personal fields.
Price and wage coverage: price collection of September 2026, catering CPI to August 2026, minimum wage in force since 1 April 2026. Dataset version 2026.10.10-monthly-bulletin, last updated 2026-10-10.