p fetchyahooquotes Downloads historic prices for a list of symbols from Yahoo! Finance using Yahoo!Finance's API p fetchyahookeystats Downloads key statistics for a list of symbols from Yahoo! Finance using Yahoo!Finance's API p fetchyahoooptions Downloads most recent option prices for a list of symbols from Yahoo! Finance web page. p portfolio estimates and calculates financial statistics to compare financial securities for portfolio selection. p fetchevents Downloads economic data announcements from Yahoo! Finance p components Downloads the list of components for an index. p components_etf Downloads the list of ETFs that available on Yahoo! Finance. p fxrates Downloads historic USD FX rates from the Federal Reserve Web Page p gwke82 Estimates Granger and Geweke type causalities p approval Downloads presidential approval poll results from 'The American Presidency Project' p stdcountry Maps country names used in different data sets p sigstars Provides statistical significance stars and the p-values p descriptives Calculates the descriptive statistics for each level of the panel data p listtex2 provides updates to listtex p fetchpwt downloads Penn World table version 7.0 p fetchcow downloads Correlates of War, Interstate Military Disputes version 4.0 p fetchigo downloads Correlates of War, International Governmental Organization v2.3 p fetchrecruit downloads Military Recruitment Dataset p fetchfdi downloads FDI data from Worldbank indicators