Alessandro Martinello
@alemartinello.com
Econ PhD from the University of Copenhagen. Ex-academia at Lund University, ex-policy at the Danish Central Bank, finally landed in the private sector and leading the data agenda at Realkredit Danmark. We have cookies!
www.alemartinello.com
www.alemartinello.com
That perfectly shows all the great stuff of the Danish home financing market I mentioned in the other thread @p-hunermund.com
1) 4% = very high rate here
2) you are not locked-in bc you can redeem the mortgage by repurchasing the bonds - cashing in the present value diff in future payment streams
1) 4% = very high rate here
2) you are not locked-in bc you can redeem the mortgage by repurchasing the bonds - cashing in the present value diff in future payment streams
The @nytimes.com manages to turn folks lucky enough to buy houses with very low (4% in this case) mortgages seem like victims. Huh?
www.nytimes.com/2025/11/16/b...
www.nytimes.com/2025/11/16/b...
They Rushed to Buy Homes During the Pandemic. Now, Some Feel Trapped.
www.nytimes.com
November 20, 2025 at 12:33 PM
That perfectly shows all the great stuff of the Danish home financing market I mentioned in the other thread @p-hunermund.com
1) 4% = very high rate here
2) you are not locked-in bc you can redeem the mortgage by repurchasing the bonds - cashing in the present value diff in future payment streams
1) 4% = very high rate here
2) you are not locked-in bc you can redeem the mortgage by repurchasing the bonds - cashing in the present value diff in future payment streams
Reposted by Alessandro Martinello
Longer maturities for mortgages are back in the news.
I wrote a Substack post about the benefits of longer maturities, potential concerns of households making mistakes, and what longer maturity mortgages might do for young households and first-time buyers (not much?)
I wrote a Substack post about the benefits of longer maturities, potential concerns of households making mistakes, and what longer maturity mortgages might do for young households and first-time buyers (not much?)
November 18, 2025 at 2:34 PM
Longer maturities for mortgages are back in the news.
I wrote a Substack post about the benefits of longer maturities, potential concerns of households making mistakes, and what longer maturity mortgages might do for young households and first-time buyers (not much?)
I wrote a Substack post about the benefits of longer maturities, potential concerns of households making mistakes, and what longer maturity mortgages might do for young households and first-time buyers (not much?)
Reposted by Alessandro Martinello
I wonder if the United States can learn anything from the last time a major industrialized country decided to isolate itself from the rest of the world?
Almost a decade after the Brexit vote, GDP in the UK is around 6-8% lower relative to peer countries. (Source: www.nber.org/papers/w34459)
Almost a decade after the Brexit vote, GDP in the UK is around 6-8% lower relative to peer countries. (Source: www.nber.org/papers/w34459)
November 11, 2025 at 3:35 PM
I wonder if the United States can learn anything from the last time a major industrialized country decided to isolate itself from the rest of the world?
Almost a decade after the Brexit vote, GDP in the UK is around 6-8% lower relative to peer countries. (Source: www.nber.org/papers/w34459)
Almost a decade after the Brexit vote, GDP in the UK is around 6-8% lower relative to peer countries. (Source: www.nber.org/papers/w34459)
Reposted by Alessandro Martinello
Anyone have experiences with a 1040-NR (U.S. nonresident tax return)? How difficult is it (in hours?)?
November 11, 2025 at 3:52 PM
Anyone have experiences with a 1040-NR (U.S. nonresident tax return)? How difficult is it (in hours?)?
In an interesting turn of events, US and Danish government came up with the same to help with the affordability crisis: longer mortgages!
That has sparked some backlash. But in the US, it seems the discussion is focusing on the wrong stuff.
Well, let’s try to learn from 🇩🇰.
That has sparked some backlash. But in the US, it seems the discussion is focusing on the wrong stuff.
Well, let’s try to learn from 🇩🇰.
November 9, 2025 at 9:27 PM
In an interesting turn of events, US and Danish government came up with the same to help with the affordability crisis: longer mortgages!
That has sparked some backlash. But in the US, it seems the discussion is focusing on the wrong stuff.
Well, let’s try to learn from 🇩🇰.
That has sparked some backlash. But in the US, it seems the discussion is focusing on the wrong stuff.
Well, let’s try to learn from 🇩🇰.
Fun fact. If you are comparing means between two groups in an experiment you can present it as
“Results from a single layer neural network with a linear activation function trained on the dichotomous experimental partition”
“Results from a single layer neural network with a linear activation function trained on the dichotomous experimental partition”
ok so i bought some consumer data and decided i'd test this single layer neural network with a linear activation function from the image below. after testing it against other algorithms i found that this estimator thing had the lowest variance of any linear unbiased training algorithm??
November 7, 2025 at 1:28 PM
Fun fact. If you are comparing means between two groups in an experiment you can present it as
“Results from a single layer neural network with a linear activation function trained on the dichotomous experimental partition”
“Results from a single layer neural network with a linear activation function trained on the dichotomous experimental partition”
Reposted by Alessandro Martinello
Run database queries directly on your website!
SQL Workbench Embedded is a lightweight (<10kb) and configurable wrapper around @duckdb.org WASM:
embedded.sql-workbench.com
SQL Workbench Embedded is a lightweight (<10kb) and configurable wrapper around @duckdb.org WASM:
embedded.sql-workbench.com
SQL Workbench Embedded - Browser-based SQL execution with DuckDB WASM
Transform static SQL code blocks into interactive, browser-based execution environments. Powered by DuckDB WASM. Zero backend required.
embedded.sql-workbench.com
October 30, 2025 at 2:15 PM
Run database queries directly on your website!
SQL Workbench Embedded is a lightweight (<10kb) and configurable wrapper around @duckdb.org WASM:
embedded.sql-workbench.com
SQL Workbench Embedded is a lightweight (<10kb) and configurable wrapper around @duckdb.org WASM:
embedded.sql-workbench.com
Reposted by Alessandro Martinello
Please read our statement, share it with your networks, and support us if you can. www.python.org/sponsors/app... psfmember.org/civicrm/cont...
October 27, 2025 at 2:47 PM
Please read our statement, share it with your networks, and support us if you can. www.python.org/sponsors/app... psfmember.org/civicrm/cont...
Reposted by Alessandro Martinello
as a condition of funding, we were asked to affirm that we wouldn’t undertake any diversity, equity, and inclusion work, whether or not we used the government funds to do so. The PSF simply couldn’t agree to that statement,
October 27, 2025 at 2:47 PM
as a condition of funding, we were asked to affirm that we wouldn’t undertake any diversity, equity, and inclusion work, whether or not we used the government funds to do so. The PSF simply couldn’t agree to that statement,
In pain and with an arm in a sling, one of the joys of the day comes from @hotgpod.bsky.social.
I got it recommended by @p-hunermund.com, and can 100% endorse. A history of which I knew embarrassingly little, narrated very entertainingly by a true expert.
Give it a try! The Ottos are unbelievable
I got it recommended by @p-hunermund.com, and can 100% endorse. A history of which I knew embarrassingly little, narrated very entertainingly by a true expert.
Give it a try! The Ottos are unbelievable
October 27, 2025 at 11:14 AM
In pain and with an arm in a sling, one of the joys of the day comes from @hotgpod.bsky.social.
I got it recommended by @p-hunermund.com, and can 100% endorse. A history of which I knew embarrassingly little, narrated very entertainingly by a true expert.
Give it a try! The Ottos are unbelievable
I got it recommended by @p-hunermund.com, and can 100% endorse. A history of which I knew embarrassingly little, narrated very entertainingly by a true expert.
Give it a try! The Ottos are unbelievable
Reposted by Alessandro Martinello
Italian Senator left Jeffrey Sachs literally speechless and shocked by calling him a liar and a propagandist.
It happened on Prime Time Italian television.
Priceless 🤩
[ENG SUB]
(The 2nd part in the next tweet)
It happened on Prime Time Italian television.
Priceless 🤩
[ENG SUB]
(The 2nd part in the next tweet)
October 24, 2025 at 1:32 PM
Italian Senator left Jeffrey Sachs literally speechless and shocked by calling him a liar and a propagandist.
It happened on Prime Time Italian television.
Priceless 🤩
[ENG SUB]
(The 2nd part in the next tweet)
It happened on Prime Time Italian television.
Priceless 🤩
[ENG SUB]
(The 2nd part in the next tweet)
Tip
When I start working on a new project, I run
time.now()
Once and use the microseconds number as seed
When I start working on a new project, I run
time.now()
Once and use the microseconds number as seed
We need to have a conversation about random seeds. Don't use 42.
blog.genesmindsmachines.com/p/if-your-ra...
blog.genesmindsmachines.com/p/if-your-ra...
If your random seed is 42 I will come to your office and set your computer on fire🔥
Figuratively. More likely you'll get a stern talking to.
blog.genesmindsmachines.com
October 23, 2025 at 4:24 AM
Tip
When I start working on a new project, I run
time.now()
Once and use the microseconds number as seed
When I start working on a new project, I run
time.now()
Once and use the microseconds number as seed
(4,6)
We tried going to bed at 10:30 but the 11mo did not comply
We tried going to bed at 10:30 but the 11mo did not comply
October 22, 2025 at 8:13 AM
(4,6)
We tried going to bed at 10:30 but the 11mo did not comply
We tried going to bed at 10:30 but the 11mo did not comply
😬
In min/km that’s 2.5km at ~ 5:48, which is ~average running time for a 5k among female participants to the yearly hygge-first DHL relay in DK, to which about 4% of the population participates, and where you run with colleagues among smoking grills and beer stands.
dhlstafetten.dk/om-dhl-stafe...
In min/km that’s 2.5km at ~ 5:48, which is ~average running time for a 5k among female participants to the yearly hygge-first DHL relay in DK, to which about 4% of the population participates, and where you run with colleagues among smoking grills and beer stands.
dhlstafetten.dk/om-dhl-stafe...
October 21, 2025 at 1:18 PM
😬
In min/km that’s 2.5km at ~ 5:48, which is ~average running time for a 5k among female participants to the yearly hygge-first DHL relay in DK, to which about 4% of the population participates, and where you run with colleagues among smoking grills and beer stands.
dhlstafetten.dk/om-dhl-stafe...
In min/km that’s 2.5km at ~ 5:48, which is ~average running time for a 5k among female participants to the yearly hygge-first DHL relay in DK, to which about 4% of the population participates, and where you run with colleagues among smoking grills and beer stands.
dhlstafetten.dk/om-dhl-stafe...
Reposted by Alessandro Martinello
Evidence from random roommate assignment and a gaming ban for minors in China once again show what I now believe incredibly strongly: smartphones and social media destroy civilization
via @arpitrage.bsky.social
via @arpitrage.bsky.social
October 17, 2025 at 4:39 PM
Evidence from random roommate assignment and a gaming ban for minors in China once again show what I now believe incredibly strongly: smartphones and social media destroy civilization
via @arpitrage.bsky.social
via @arpitrage.bsky.social
Linkedin never disappoints.
“The social safety net is so good that nobody takes any risks” is a masterpiece.
Anyway, 🇩🇰 has also drawbacks.
“The social safety net is so good that nobody takes any risks” is a masterpiece.
Anyway, 🇩🇰 has also drawbacks.
October 13, 2025 at 5:08 PM
Linkedin never disappoints.
“The social safety net is so good that nobody takes any risks” is a masterpiece.
Anyway, 🇩🇰 has also drawbacks.
“The social safety net is so good that nobody takes any risks” is a masterpiece.
Anyway, 🇩🇰 has also drawbacks.
Random shoutout - I just started to read Data Engineering Design Patterns by @ssp.sh and it is full of tremendous inspiration, not only from a technical perspective, but also on how to effectively communicate data challenges. Getting pumped abt returning to work after paternity leave
dedp.online
dedp.online
October 11, 2025 at 12:03 PM
Random shoutout - I just started to read Data Engineering Design Patterns by @ssp.sh and it is full of tremendous inspiration, not only from a technical perspective, but also on how to effectively communicate data challenges. Getting pumped abt returning to work after paternity leave
dedp.online
dedp.online
Fatti non foste a viver come bruti, ma per seguir virtute e canoscenza
I think for me the most compelling answer for "why fund basic research?" (and the one most relevant to the people doing the work) is that humans are curious and finding stuff out makes us happy and fulfilled. Science is a thing humans like. Life would be more dull and sad if we didn't do it.
end/🧵
end/🧵
October 5, 2025 at 6:43 PM
Fatti non foste a viver come bruti, ma per seguir virtute e canoscenza
Reposted by Alessandro Martinello
It's always the same small circle of people talking to each other at the NBER—while the others quietly watch from the back or from their screens at home. Though I'm sure the institution was founded on noble intentions, nothing better captures the profession's insularity and quiet collusion.
September 30, 2025 at 12:50 PM
It's always the same small circle of people talking to each other at the NBER—while the others quietly watch from the back or from their screens at home. Though I'm sure the institution was founded on noble intentions, nothing better captures the profession's insularity and quiet collusion.
Reposted by Alessandro Martinello
The drones in Copenhagen have been a painful reminder at completing the preparations recommended by the 🇩🇰 government in case of sabotage to critical infra.
Last items: water for three days, emergency radio.
If you haven’t done it already, it is a good time to do it now!
Last items: water for three days, emergency radio.
If you haven’t done it already, it is a good time to do it now!
September 24, 2025 at 6:08 PM
The drones in Copenhagen have been a painful reminder at completing the preparations recommended by the 🇩🇰 government in case of sabotage to critical infra.
Last items: water for three days, emergency radio.
If you haven’t done it already, it is a good time to do it now!
Last items: water for three days, emergency radio.
If you haven’t done it already, it is a good time to do it now!
Sssh, do not break the bubble of the American pundit class, “the Europeans might enjoy decent healthcare, social safety nets and basic human rights, but they are lazy while we work a lot” is all they have left
If you're American, one point of concern is that we rank behind nearly every EU member in terms of employment rates. Only Spain, Italy, Greece, and Romania are lower than the US's 80.6%
September 13, 2025 at 3:21 PM
Sssh, do not break the bubble of the American pundit class, “the Europeans might enjoy decent healthcare, social safety nets and basic human rights, but they are lazy while we work a lot” is all they have left
Well, preparing roe deer stew with the main ingredient grazing just out of the window is a first
September 13, 2025 at 1:28 PM
Well, preparing roe deer stew with the main ingredient grazing just out of the window is a first
Reposted by Alessandro Martinello
I wrote something for The Nation about how Republican style has changed over the last fifty years.
But first, let me tell you a short story. 🧵
www.thenation.com/article/soci...
But first, let me tell you a short story. 🧵
www.thenation.com/article/soci...
How Did Republican Fashion Go From Blazers to Belligerence?
Trump and his cronies’ style reflects a platform where grievance is currency and performance is power.
www.thenation.com
September 11, 2025 at 7:06 PM
I wrote something for The Nation about how Republican style has changed over the last fifty years.
But first, let me tell you a short story. 🧵
www.thenation.com/article/soci...
But first, let me tell you a short story. 🧵
www.thenation.com/article/soci...