Using 352 observations on 44 rice farmers in the Tarlac region of the Phillipines for 8 years from 2010 to 2017, we estimated the relationship between tonnes of freshly threshed rice produced (PROD), hectares planted (AREA), person-days 1 Model (1) OLS (2) OLS (3) FE (4) FE of hired and family labor (LABOR), and kilograms of fertilizer (FERT). The log-log specification of the model, including the unobserved heterogeneity term, is ln(P RODit) = 1 + 2ln(AREAit) + 3ln(LABORit) + 4ln(F ERTit) + ui + eit Table 1 contains various estimates of the model. Model (1) contains OLS esti- mates. Model (2) contains OLS estimates of the model including year dummy variables, which are not shown, such as D01 = 1 for year 2001, D01 = 0 otherwise. Model (3) contains fixed effects estimates. Model (4) contains fixed effects esti- mates of the model including year dummy variables. In each case, conventional standard errors are reported, (se), and for Model (4), we also report cluster- robust standard errors (robust). For each model, we report the sum of squared residuals and the number of model parameters, apart from the intercept. The p- values are reported for the t-statistics computed using the conventional