Table
3.3
Unilever N.V./Unilever PLC Price Differentials and Market MovementsThis table reports regressions estimates of the equation:whererNV−PLC,is the difference between the log returns of Unilever N.V. (Amsterdam) and PLC (London); tS&P, FTSE, andDIare re-turns on the S&P,Financial TimesAllshare index, and Dutch stock indexes, respectively, expressed in their native currencies; andgl/$andgl/£, represent log changes in the guilder-to-dollar and guilder-to-pound exchange rates. Specification 1 includes leads and lags(shown above) to allow for nonsynchronous trading. Specification 2 employs a more restricted set of leads and lags (based on actual timedifferentials). Specifications 3 and 4 are the same as Specifications 1 and 2, but include a lagged dependent variable on the right-handside. Durbin’s Alternate H (DAH) is reported in place of the Durbin–Watson (DW) statistic for Specifications 3 and 4. Specifications 5, 6,7, 8 employ 2-, 5-, 15-, and 50-day returns. For these specifications, leads and lags of independent variables are dropped. Allregressionsare OLS, with standard errors that allow for serial correlation and heteroskedasticity. Where there is only a single coefficient, standarderrors are in parentheses.Return DW orLaggedDutchSpecificationHorizonR2DAHDOFDep. Var.S&PFTSEIndexgl/$gl/£1, 1980–19951 day0.2902.2741240.098c−
0.490c0.328c−
0.138c−
0.463c2, 1980–19951 day0.2592.2541330.046c−
0.624c0.556c−
0.125c−
0.658c3, 1980–19951 day0.298−
0.30b4091−
0.131c0.098c−
0.571c0.394c−
0.157c−
0.552c4, 1980–19951 day0.2870.13c4101−
0.182c0.085c−
0.640c0.544c−
0.667c−
0.132c5, 1980–19952 days0.2582.2619500.041b−
0.550c0.467c−
0.090c−
0.565c(0.024)(0.033)(0.032)(0.033)(0.052)6, 1980–19955 days0.2442.267760.034−
0.470c0.341c−
0.123c−
0.374c(0.042)(0.044)(0.048)(0.039)(0.072)rSPFTSEDIglgltitiijtj
jktkkltllmtmtmNV PLC,&/$/£−+=−+=−+=−+=−+=−=++++++∑∑
∑∑∑
αβδλγυε1 11 11 11 11 1