Empire State Manufacturing Survey: Availability of supplies: Future (increase vs decrease; diffusion index; percentage points; seasonally adjusted) - United States - NY FED - Monthly
This series is part of the dataset: Empire State Manufacturing Survey (NY FED)
Download Full Dataset (.xlsx)Latest updates. Based on a sample of manufacturing firms surveyd by the FED, the seasonally adjusted diffusion index for the availability of supplies (share of CEOs seeing a future increase minus share forecasting a decrease) was -2.0 in September 2025, versus -1.8 in August.
Sample. There are 17 observations overall in the montly time series displayed in the chart above. The series covers the time period extending from May 2024 to September 2025.
History. Here's a peek at a few descriptive statistics computed on the full sample: the diffusion index averaged -3.5; it reached its maximum of 9.1 in May 2024; it recorded a minimum of -27.6 in May 2025.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2025-07-31 | -2.8 |
| 2025-08-31 | -1.8 |
| 2025-09-30 | -2.0 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Diffusion index for the question: Will the availability of supplies increase or decrease over the next six months? |
| Country | United States |
| Economic concept | Business survey response |
| Data type | Leading indicator of the business cycle |
| Deflation method | Not applicable |
| Seasonally adjusted | Yes |
| Rescaling | None |
| Frequency | Montly |
| Unit | Percentage points |
| Source | Federal Reserve Bank of New York |
| Source type | Central bank |
| Data licence | Free use subject to conditions |
| Measure type | Diffusion index (share of respondents reporting an increase minus share reporting a decrease) |
Series in the same data set
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