Sustainability,
Год журнала:
2025,
Номер
17(11), С. 5100 - 5100
Опубликована: Июнь 2, 2025
Fine
particulate
matter
(PM2.5)
pollution
poses
a
major
threat
to
human
physical
and
mental
health.
Smart
cities
(SCs)
provide
innovative
paths
for
PM2.5
prevention
control
through
Internet
of
Things
(IoT)
monitoring,
intelligent
transportation
optimization,
other
technological
means.
Based
on
the
panel
data
2,141
counties
in
China
between
2006
2021,
this
paper
constructs
difference-in-differences
with
multiple
time
periods
(MDID)
systematically
assess
impact
SC
concentration
analyze
its
mechanism
action
by
combining
satellite
remote
sensing
(PM2.5C)
list
smart
city
pilots.
This
study
finds
following:
(1)
significantly
reduced
test
area
about
3.58%.
conclusion
was
verified
rigorous
robustness
testing;
(2)
can
effectively
reduce
PM2.5C
innovation
effect;
(3)
High-quality
economic
development
strengthen
emission
reduction
effect
PM2.5C;
(4)
The
environmental
benefits
show
significant
spatial
heterogeneity,
largest
reductions
occurring
western
regions
(4.3%
reduction),
followed
mature
digital
infrastructure
high
administrative
level
cities.
results
reference
regional
differentiated
implementation
“14th
Five-Year
Plan
Development
Innovative
Smarter
Cities”,
make
targeted
recommendations
synergistic
management
air
quality
under
“dual-carbon”
goal.
Humanities and Social Sciences Communications,
Год журнала:
2023,
Номер
10(1)
Опубликована: Сен. 27, 2023
Abstract
The
impact
of
digital
transformation
on
employment
has
been
increasingly
noticed
by
the
academic
community,
while
internal
mechanism
still
remains
as
a
black
box,
especially
in
terms
specific
pilot
policy,
such
national
smart
city
pilots
policy
China.
Based
city-level
and
firm-level
panel
data,
we
investigate
China’s
pressure
urban
job
seekers
using
difference-in-differences
model.
results
show
that
significantly
reduces
cities.
In
addition,
bringing
configuration
optimization
technological
upgrading,
affect
firm
selection
at
micro
level,
generating
siphoning
effects,
factor
substitution
efficiency
gains,
further
macro
economy
promoting
economic
agglomeration,
industrial
structure
transformation,
regional
innovation
thereby
affecting
pressure.
Furthermore,
reduction
effect
are
heterogeneous
cities,
firms,
workers’
education
levels.
Finally,
conclusions
implementations
provided
to
highlight
theoretical
practical
values.
