Consider the following statements about Punjab’s industrial sector challenges:

1. The Jalandhar sports goods cluster lacks significant large firms and is dominated by micro and small enterprises.
2. High import duties on raw materials and equipment pose a major challenge for small manufacturers.
3. Punjab’s Vision Document 2047 proposes reviving the Freight Equalization Scheme, which was scrapped in 1993.
4. Industry associations and policymakers provide adequate institutional support for MSMEs in Punjab.

Which of the above statements are correct?