Please explain using correct notations and terms. (1) From the paper Fertility, Employment, and Family Policy A cross-country panel analysis. (2023) OECD SOCIAL, EMPLOYMENT AND MIGRATION WORKING PAPERS No. 299. (a) Explain the numbers in boxes in terms of their coefficients, standard errors and statistical significance. (b) Explain also their economic intuition. (c) Compare the results in boxes in Columns (3) and (6), discuss the differences and similarities.