cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.5676/dwd_gpcc/fd_m_v2022_05
title: GPCC Full Data Monthly Version 2022 at 0.5°: Monthly Land-Surface Precipitation from Rain-Gauges built on GTS-based and Historic Data
title: Globally Gridded Monthly Totals

description: This is the centennial GPCC Full Data Monthly Product of monthly global land-surface precipitation based on the ~86,000 stations world-wide that feature record durations of 10 years or longer. The data coverage per month varies from ~20,000 (previous version 15,000) to more than 52,000 stations. The Full Data Monthly Product will be updated at irregular time intervals subsequent to significant data base improvements. This product contains the monthly totals on a regular grid with a spatial resolution of 0.25° x 0.25°, 0.5° x 0.5°, 1.0° x 1.0°, and 2.5° x 2.5° latitude by longitude. Precipitation anomalies at the stations are interpolated and then superimposed on the GPCC Climatology V2022 in the corresponding resolution (DOIs: 10.5676/DWD_GPCC/Clim_M_V2022_025, 10.5676/DWD_GPCC/Clim_M_V2022_050, 10.5676/DWD_GPCC/Clim_M_V2022_100, and 10.5676/DWD_GPCC/Clim_M_V2022_250). The temporal coverage of the dataset ranges from January 1891 until December 2020.

The GPCC Full Data Monthly Product is the most accurate in situ precipitation reanalysis data set of GPCC. Moreover it supports regional climate monitoring, model validation, climate variability analysis and water resources assessment studies.
description: General user recommendations:
Users are referred to following gridded Global Precipitation Climate Centre (GPCC) products:

GPCC Climatology 1951-2000 (GPCC_Clim) with high representativeness, for application as a reference, and for utilization of the anomaly interpolation method.

GPCC Full Data Monthly Product (GPCC_FD) with high accuracy, for, e.g., verification of models, or for analysis of historical global precipitation, or for research concerning the global water cycle, e.g., teleconnection analyses.

GPCC Full Data Daily Product (GPCC_FD_D) is recommended to be used when the daily precipitation information is of highest importance, e.g. for analyses of extreme events and related statistics at daily resolution.

GPCC HOMPRA-Europe (HOMPRA-Europe) with homogenized precipitation data, suitable for trend analyses.

GPCC Monitoring Product (GPCC_MP) with high availability and reasonable timeliness, for applications like calibration of satellite data, or early annual reporting.

GPCC First Guess Monthly Product (GPCC_FG) with high timeliness, to be applied for, e.g., drought monitoring.

GPCC First Guess Daily Product (GPCC_FG_D) with high timeliness, to be applied for, e.g., drought monitoring.

GPCC Drought Index Product (GPCC_DI_M) with high timeliness, to be applied for, e.g., drought monitoring.

Please notice also the (GPCC Download Gate) with the current versions of all GPCC datasets and additional informations.
DOI: 10.6084/m9.figshare.20025604
title: The influence of national culture on the relationship between corporate governance and earnings management,

description: ABSTRACT The aim of the study was to analyze the influence of the dimensions of national culture on the relationship between corporate governance (CG) and earnings management (EM). There is evidence that in certain cultural contexts CG mechanisms appear to be ineffective in minimizing EM. Studies on governance and its influence on accounting information quality can help market participants make better decisions. It is important to include the cultural context in this relationship as it sheds light on an aspect that has hardly been explored in the research, which can improve the informational environment of organizations. In practical terms, the results may contribute to organizations paying more attention to the cultural influence of countries when implementing or improving their governance mechanisms, with the aim of making them more effective in aligning interests and monitoring behaviors in organizations. Moreover, market participants may require alterations in these mechanisms in more individualistic and indulgent cultural contexts. The sample was composed of 18,707 observations of companies located in 24 countries belonging to the G20 group, covering 2010 to 2017. The data were operationalized using a multiple linear regression, with robust standard errors and controls for sector and year fixed effects, using the propensity score matching (PSM) method. The premise that CG can minimize EM was confirmed in this research, except in individualistic and indulgent countries. In these cultural contexts, governance mechanisms tend to be ineffective in minimizing EM. These results contribute to the literature by highlighting that the culture of countries can impact the effectiveness of CG in mitigating opportunistic practices, which explains the ambiguous results of previous research.
DOI: 10.6084/m9.figshare.20025604.v1
title: The influence of national culture on the relationship between corporate governance and earnings management,

description: ABSTRACT The aim of the study was to analyze the influence of the dimensions of national culture on the relationship between corporate governance (CG) and earnings management (EM). There is evidence that in certain cultural contexts CG mechanisms appear to be ineffective in minimizing EM. Studies on governance and its influence on accounting information quality can help market participants make better decisions. It is important to include the cultural context in this relationship as it sheds light on an aspect that has hardly been explored in the research, which can improve the informational environment of organizations. In practical terms, the results may contribute to organizations paying more attention to the cultural influence of countries when implementing or improving their governance mechanisms, with the aim of making them more effective in aligning interests and monitoring behaviors in organizations. Moreover, market participants may require alterations in these mechanisms in more individualistic and indulgent cultural contexts. The sample was composed of 18,707 observations of companies located in 24 countries belonging to the G20 group, covering 2010 to 2017. The data were operationalized using a multiple linear regression, with robust standard errors and controls for sector and year fixed effects, using the propensity score matching (PSM) method. The premise that CG can minimize EM was confirmed in this research, except in individualistic and indulgent countries. In these cultural contexts, governance mechanisms tend to be ineffective in minimizing EM. These results contribute to the literature by highlighting that the culture of countries can impact the effectiveness of CG in mitigating opportunistic practices, which explains the ambiguous results of previous research.
DOI: 10.6084/m9.figshare.20025605.v1
title: Risk management in the public sector: challenges in its adoption by Brazilian federal universities

description: ABSTRACT The aim of this study was to analyze the perception of the members of the risk committees of federal universities in Brazil regarding the challenges in the adoption of risk management in those institutions. Currently, federal universities are obliged by law to manage their risks. This is a recent process that presents them with considerable challenges, which have scarcely been explored. Studying the challenges in adopting risk management enables federal universities to gradually improve their overall management, with the aim of adopting the process in the best way possible. This study contributes to the professional and academic areas by proposing a set of actions within the operational context of the universities to improve the maturity level of the risk management of those institutions. The procedure adopted was a survey covering 68 federal universities in operation in 2019. The quantitative study was based on a questionnaire sent to the public servants on their governance, risk, and control committees, which had a 73% response rate. The data were analyzed using descriptive statistics and position and dispersion measures. Perception was analyzed regarding the challenges arising from the adoption of risk management, in which a lack of process mapping, the need for staff engagement and training, the emergence of divergences concerning the treatment of risk, and excess demands on staff were highlighted. The evidence indicated that risk management can guarantee and facilitate compliance with laws, regulations, norms, and standards, as well as the identification of external scenarios that can influence the occurrence of events that negatively impact not only the universities but the whole community.
DOI: 10.6084/m9.figshare.20025605
title: Risk management in the public sector: challenges in its adoption by Brazilian federal universities

description: ABSTRACT The aim of this study was to analyze the perception of the members of the risk committees of federal universities in Brazil regarding the challenges in the adoption of risk management in those institutions. Currently, federal universities are obliged by law to manage their risks. This is a recent process that presents them with considerable challenges, which have scarcely been explored. Studying the challenges in adopting risk management enables federal universities to gradually improve their overall management, with the aim of adopting the process in the best way possible. This study contributes to the professional and academic areas by proposing a set of actions within the operational context of the universities to improve the maturity level of the risk management of those institutions. The procedure adopted was a survey covering 68 federal universities in operation in 2019. The quantitative study was based on a questionnaire sent to the public servants on their governance, risk, and control committees, which had a 73% response rate. The data were analyzed using descriptive statistics and position and dispersion measures. Perception was analyzed regarding the challenges arising from the adoption of risk management, in which a lack of process mapping, the need for staff engagement and training, the emergence of divergences concerning the treatment of risk, and excess demands on staff were highlighted. The evidence indicated that risk management can guarantee and facilitate compliance with laws, regulations, norms, and standards, as well as the identification of external scenarios that can influence the occurrence of events that negatively impact not only the universities but the whole community.
DOI: 10.5676/dwd_gpcc/fd_m_v2022_25
title: GPCC Full Data Monthly Version 2022 at 2.5°: Monthly Land-Surface Precipitation from Rain-Gauges built on GTS-based and Historic Data
title: Globally Gridded Monthly Totals

description: This is the centennial GPCC Full Data Monthly Product of monthly global land-surface precipitation based on the ~86,000 stations world-wide that feature record durations of 10 years or longer. The data coverage per month varies from ~20,000 (previous version 15,000) to more than 52,000 stations. The Full Data Monthly Product will be updated at irregular time intervals subsequent to significant data base improvements. This product contains the monthly totals on a regular grid with a spatial resolution of 0.25° x 0.25°, 0.5° x 0.5°, 1.0° x 1.0°, and 2.5° x 2.5° latitude by longitude. Precipitation anomalies at the stations are interpolated and then superimposed on the GPCC Climatology V2022 in the corresponding resolution (DOIs: 10.5676/DWD_GPCC/Clim_M_V2022_025, 10.5676/DWD_GPCC/Clim_M_V2022_050, 10.5676/DWD_GPCC/Clim_M_V2022_100, and 10.5676/DWD_GPCC/Clim_M_V2022_250). The temporal coverage of the dataset ranges from January 1891 until December 2020.

The GPCC Full Data Monthly Product is the most accurate in situ precipitation reanalysis data set of GPCC. Moreover it supports regional climate monitoring, model validation, climate variability analysis and water resources assessment studies.
description: General user recommendations:
Users are referred to following gridded Global Precipitation Climate Centre (GPCC) products:

GPCC Climatology 1951-2000 (GPCC_Clim) with high representativeness, for application as a reference, and for utilization of the anomaly interpolation method.

GPCC Full Data Monthly Product (GPCC_FD) with high accuracy, for, e.g., verification of models, or for analysis of historical global precipitation, or for research concerning the global water cycle, e.g., teleconnection analyses.

GPCC Full Data Daily Product (GPCC_FD_D) is recommended to be used when the daily precipitation information is of highest importance, e.g. for analyses of extreme events and related statistics at daily resolution.

GPCC HOMPRA-Europe (HOMPRA-Europe) with homogenized precipitation data, suitable for trend analyses.

GPCC Monitoring Product (GPCC_MP) with high availability and reasonable timeliness, for applications like calibration of satellite data, or early annual reporting.

GPCC First Guess Monthly Product (GPCC_FG) with high timeliness, to be applied for, e.g., drought monitoring.

GPCC First Guess Daily Product (GPCC_FG_D) with high timeliness, to be applied for, e.g., drought monitoring.

GPCC Drought Index Product (GPCC_DI_M) with high timeliness, to be applied for, e.g., drought monitoring.

Please notice also the (GPCC Download Gate) with the current versions of all GPCC datasets and additional informations.
DOI: 10.22008/fk2/rmfmuw/oue7ea
title: Greenshift_01.mp4

description: Video
DOI: 10.22008/fk2/rmfmuw
title: Video abstract - Towards green Arctic fjords

description: Video abstract "Towards green Arctic fjords" by Underground Channel. Relates to Oksman et al. study on the impacts of Greenland ice sheet freshwater runoff on the marine ecosystem published in The Cryosphere.
DOI: 10.6084/m9.figshare.20025608
title: Composition of portfolios by pairs trading with volatility criteria in the Brazilian market,

description: ABSTRACT The objective of this study was to understand how the shares’ volatility affects the portfolios’ dynamics formed using the model of pairs trading in the Brazilian stock market. This article distinguished itself by bringing new evidence about the effects of volatility in the pairs trading model not covered by previous studies, expanding the sample size analyzed in the Brazilian stock market. The chosen theme’s relevance is that investors can use pairs trading or long-short models to build their portfolios. The use of cointegration concepts probabilistically contributes to portfolios’ formation weakly correlated to the market indexes with superior performance. This article impacts the area by contributing new evidence for better use of the model in the analysis of investments. From January 2016 to December 2018, the 90 most liquid assets of Bolsa, Brasil, Balcão (B3) were analyzed, totaling 5,927,400 possible pairs. The Augmented Dickey-Fuller test and subsequent backtesting of the pairs in the proposed period were used to evaluate the cointegration criteria. Statistical analysis was performed by parametric and non-parametric tests and Pearson and Spearman correlation analyses. The results found indicated that the formation of portfolios by pairs trading with dependent assets with the criterion of higher levels of volatility (20 periods) presented a superior performance. These findings can be justified by a better risk and return ratio for the portfolio, measured by the Sharpe Index of the returns obtained concerning the portfolio’s volatility, compared to a portfolio formation based on a random selection of the pairs. In addition, the results also showed a low correlation of returns concerning the market index. Therefore, the application of the statistical cointegration analysis methodology alone does not guarantee results that are different from the market average.
DOI: 10.6084/m9.figshare.20025608.v1
title: Composition of portfolios by pairs trading with volatility criteria in the Brazilian market,

description: ABSTRACT The objective of this study was to understand how the shares’ volatility affects the portfolios’ dynamics formed using the model of pairs trading in the Brazilian stock market. This article distinguished itself by bringing new evidence about the effects of volatility in the pairs trading model not covered by previous studies, expanding the sample size analyzed in the Brazilian stock market. The chosen theme’s relevance is that investors can use pairs trading or long-short models to build their portfolios. The use of cointegration concepts probabilistically contributes to portfolios’ formation weakly correlated to the market indexes with superior performance. This article impacts the area by contributing new evidence for better use of the model in the analysis of investments. From January 2016 to December 2018, the 90 most liquid assets of Bolsa, Brasil, Balcão (B3) were analyzed, totaling 5,927,400 possible pairs. The Augmented Dickey-Fuller test and subsequent backtesting of the pairs in the proposed period were used to evaluate the cointegration criteria. Statistical analysis was performed by parametric and non-parametric tests and Pearson and Spearman correlation analyses. The results found indicated that the formation of portfolios by pairs trading with dependent assets with the criterion of higher levels of volatility (20 periods) presented a superior performance. These findings can be justified by a better risk and return ratio for the portfolio, measured by the Sharpe Index of the returns obtained concerning the portfolio’s volatility, compared to a portfolio formation based on a random selection of the pairs. In addition, the results also showed a low correlation of returns concerning the market index. Therefore, the application of the statistical cointegration analysis methodology alone does not guarantee results that are different from the market average.
DOI: 10.6084/m9.figshare.20025610
title: Study on the relationship between the IVol-BR and the future returns of the Brazilian stock market,

description: ABSTRACT In 2015, the Financial Economics Research Center (NEFIN) of the University of São Paulo proposed an implicit volatility index for the Brazilian stock market based on the daily prices of options for the Bovespa index (Ibovespa) and that measures the expected volatility of the Ibovespa in the next two months. The aim of this study is to determine whether this implicit volatility index can be considered an antecedent indicator of future returns of the Brazilian stock market, given that it represents the expected volatility of the Ibovespa two months into the future. This study contributes to the literature on the implicit volatility index for the Brazilian stock market, which has been scarce until now. This happens due to the recent establishment of the index and due to the fact that there is not an official one published by the B3 S.A. - Brasil, Bolsa, Balcão (B3). Given the relationship found between the Brazilian implicit volatility index and the future returns of the Ibovespa, investors could anticipate instabilities in the Brazilian market by putting together strategies to protect their investment portfolios, as well as identifying opportunities to enter and exit the market. This research corroborates in disclosing the Brazilian implicit volatility index in order for it to become more widely used in academia and in the Brazilian financial market. The increase in studies on this index may also incentivize the launch of an official implicit volatility index by the B3. The relationship between the Brazilian implicit volatility index and the future returns of the Ibovespa is examined using least squares and quantile regressions. The implicit volatility index for the Brazilian stock market could help in predicting the future returns of the Ibovespa, especially for 20-, 60-, 120-, and 250-day future returns.
DOI: 10.6084/m9.figshare.20025610.v1
title: Study on the relationship between the IVol-BR and the future returns of the Brazilian stock market,

description: ABSTRACT In 2015, the Financial Economics Research Center (NEFIN) of the University of São Paulo proposed an implicit volatility index for the Brazilian stock market based on the daily prices of options for the Bovespa index (Ibovespa) and that measures the expected volatility of the Ibovespa in the next two months. The aim of this study is to determine whether this implicit volatility index can be considered an antecedent indicator of future returns of the Brazilian stock market, given that it represents the expected volatility of the Ibovespa two months into the future. This study contributes to the literature on the implicit volatility index for the Brazilian stock market, which has been scarce until now. This happens due to the recent establishment of the index and due to the fact that there is not an official one published by the B3 S.A. - Brasil, Bolsa, Balcão (B3). Given the relationship found between the Brazilian implicit volatility index and the future returns of the Ibovespa, investors could anticipate instabilities in the Brazilian market by putting together strategies to protect their investment portfolios, as well as identifying opportunities to enter and exit the market. This research corroborates in disclosing the Brazilian implicit volatility index in order for it to become more widely used in academia and in the Brazilian financial market. The increase in studies on this index may also incentivize the launch of an official implicit volatility index by the B3. The relationship between the Brazilian implicit volatility index and the future returns of the Ibovespa is examined using least squares and quantile regressions. The implicit volatility index for the Brazilian stock market could help in predicting the future returns of the Ibovespa, especially for 20-, 60-, 120-, and 250-day future returns.
DOI: 10.6084/m9.figshare.20025611
title: Framing effects of information on investment risk perception

description: ABSTRACT The aim of this study is to verify whether the framing effects of past performance information affect the risk perception of individuals for fixed-income and variable income fund. We assess whether risk perception varies depending on how information is communicated to investors, considering the relevance of possible framing effects arising from how information is presented in investment funds’ prospectuses and reports. This study is aimed at investors (individual and institutional) and fund industry regulators, highlighting the importance of past performance presentation. This article aims to contribute to the area by investigating how investors are influenced by varying perceptions of risk and return on fixed-income and variable-income assets, depending on information presentation format. The approach used is based on a 2x2 factorial quasi-experiment, in which format (within-subject) and time horizon (between-subjects) effects are tested in a sample of 143 respondents. Our results indicate that, for investment in a variable-income fund, a monthly yield presentation format leads to higher perceived risk, and that a framing emphasizing fund value evolution leads to higher perceived returns. As for investment in a fixed-income fund, the framing that emphasizes fund value leads to both higher perceived risk and higher perceived returns. When comparing the results for the two types of investments, the risk perception was higher for variable-income than for fixed income funds. However, perceived returns were higher for fixed income than for variable-income funds due to the framing effect, although realized returns do not corroborate this perception.