Your reference to stagflation is vaguely amusing... but I wonder if you understand what the term was originally coined to refer to, or who invented it?

AIUI the term refers to a stagnant economy combined with high inflation, such as happened in the 1970s. I don't know who coined it.

Can you explain the word "Keter" in the context of sephardi kaddusha please?

In place of נַקְדִּישְׁךָ they say <googles>:

כֶּתֶר יִתְּנוּ לְךָ ה׳ אֱלֹהֵינוּ מַלְאָכִים הֲמוֹנֵי מַעְלָה עִם עַמְּךָ יִשרָאֵל קְבוּצֵי מַטָּה׃ יַחַד כֻּלָּם קְדֻשָּׁה לְךָ יְשַׁלֵּשׁוּ כַּדָּבָר הָאָמוּר עַל יַד נְבִיאֶךָ וְקָרָא זֶה אֶל זֶה וְאָמַר׃