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You are an expert at identifying data availability statements in scientific text. A data availability statement describes where research data can be found or how it can be accessed.<|eot_id|><|start_header_id|>user<|end_header_id|>

Determine if the following text contains a data availability statement. Answer with 'yes' or 'no'.

Text: By estimating (1), we estimate a reduced form and assume that all relevant income and consumption effects, resulting from variation in soil nutrients, have evolved into an equilibrium effect captured by parameter b: Our estimation approach closely follows the approach used by Michalopoulos and Papaioannou [27], also including many of the same control variables. We estimate (1) using OLS in Stata and since the soil **data** is a cross-section so is our estimation approach. Observations are arranged at the lowest possible grid cell level, in our case grid cells at a resolution of 5km x 5km. We cluster standard errors twice, using the multiway clustering approach developed by Cameron et al. [28] (available through the reghde command available for Stata developed by Correia [29]) in order to account for unobserved spatial correlations. In each specification, we cluster at the country level and either at the regional level (for which most health **data** is provided) or at the level of precolonial institutions (also see **data** description).<|eot_id|><|start_header_id|>assistant<|end_header_id|>

no<|eot_id|>