Data on the correlations among brand value, market capitalization, and consolidated overseas sales ratios of Japanese companies

This data article features a figure and tables that show the correlations among brand value by Brand Valuation (Interbrand Japan, Inc. Tokyo, Japan), market capitalization, and the consolidated overseas sales ratios of Japanese companies. The figure shows the scatter plot for market capitalization vs. brand value for Japanese companies. The lines in the plot show the regression fits for two groups of companies (domestic and global) with consolidated overseas sales ratios below or above 30%, respectively. The Pearson's correlation coefficients between brand value and market capitalization are calculated for global and domestic companies separately. Additionally, cross-tabulation statistics and Chi-square test of independence for brand values and consolidated overseas sales ratios were performed to assess their correlation.


Data
This data article provides five sets of data: one figure and four tables. Table 1 shows brand values, consolidated overseas sales ratios, and market capitalization of 80 Japanese companies used in this article. The figure indicates the brand value (Interbrand Japan, Inc., Tokyo, Japan) of Japanese companies related to both their market capitalization and consolidated overseas sales ratios (Fig. 1). A scatter plot and regression lines indicate the correlation between brand value and market capitalization. We created regression lines for each global and domestic company with consolidated overseas sales ratios of above and below 30%. Table 2 presents the Pearson's correlation coefficients between brand value and market capitalization. The Pearson's correlation coefficients between brand value and market capitalization were higher for global and domestic companies when calculated separately compared to when they are calculated together, as Table 1 shows. The consolidated overseas sales ratio also relates to brand value. The cross-tabulation statistics and Chi-square test of independence (Tables  3 and 4) supports this finding.

Design
Researchers can calculate the value of a company using many corporate valuation methods [1]. In this data article, we choose "brand value" based on Brand Valuation, a metric published by Interbrand Japan, Inc. (Tokyo, Japan), a branding agency.

Brand value and market capitalization
The brand value and consolidated overseas sales ratios for 80 Japanese companies (40 domestic and 40 global companies) for 2017 were collected from the website of Interbrand Japan Ltd [2,3]. The

Value of the data
The data indicate that the brand value published by a branding agency is related closely to global sales and market capitalization.
The data indicate that research on a company's brand value should include its market capitalization to characterize the company.
The data imply that researchers should consider the global sales ratios to characterize the company's brand.
The data indicate the importance of considering both the global development and brand value when investigating a company's overseas expansion.

Specifications table
Subject area Finance More specific subject area Corporate valuation Type of data Graph and tables How data was acquired Data were acquired from the websites of Interbrand Japan, Inc. and Yahoo Japan Finance.

Data format
Analyzed

Experimental factors
Brand values and consolidated overseas sales ratios were collected from the Interbrand web site.
Market capitalization values were collected from Yahoo Japan's finance website.

Experimental features
Scatter plots and regression lines were produced using brand value and market capitalization. The consolidated overseas sales ratios are indicated by the size of the dots in the plots. The significance of the relationship between brand value and market capitalization and consolidated overseas sales ratios were assessed using Pearson's correlation coefficients and Chi-squared test. Data source location Japan Data accessibility Data are presented within this article. Related research article N/A

Statistical analysis
We present the correlation between brand value and market capitalization in a scatter plot and in regression statistics using Pearson's correlation coefficient. Cross-tabulation statistics and Chi-square test of independence were employed to assess the correlation between brand value and consolidated overseas sales ratios of Japanese companies listed in Table 1. All statistical analyses were performed using the free R software package (available at https://www.r-project.org) [4] and Microsoft Excel (Redmond, WA, USA). a "Domestic" was defined as a company with overseas sales ratio less than 30%, and a company with more than 30% overseas sales was defined as "Global". However, the companies indicated by ** have overseas sales ratios exceeding 30%, but because they have less than 30% of sales in each brand-bearing business, they are defined as domestic.

Transparency document
Transparency document associated with this article can be found in the online version at https:// doi.org/10.1016/j.dib.2019.103808. Table 4 Chi-square test of independence on the cross-tabulation (Table 2) with different correction methods to measure the relationship between consolidated overseas sales ratios and brand value. Both chi-square tests indicate the relationship between consolidated overseas sales ratios and brand value are not irrelevant.